Fertile day calculator
If you want to get pregnant naturally, but have been unsuccessful for several months, it is a good idea to check your ovulation day and plan your next attempt a day or two earlier. A fertile days calculator will help you. Find out when you have the best chance of getting pregnant and create your own ovulation calendar! To use the fertile days calculator, you need to know the date of the first day of your cycle, i.e. the first day of the onset of your period, and the average length of your cycle.
What can be done to get pregnant?
If you want to become a mum, make sure you try for a baby at the best time of your cycle. Find out when your fertile days and ovulation are, so as not to miss them the following month.
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If you are concerned about your lack of pregnancy and suspect that your difficulties in getting pregnant may be rooted in health problems, Make an appointment at Invimed.
Fertile day calculator
What can be done to get pregnant?
If you want to become a mum, make sure you try for a baby at the best time of your cycle. Find out when your fertile days and ovulation arein order not to miss them in the following month
The fertile days in a woman's monthly cycle are, as the name suggests, the most appropriate time to start trying for a baby. Fertile days and infertile days can be determined in several ways, including with the help of a so-called ovulation calculator. Assuming your cycle is regular and lasts about 28 days, it allows you to determine ovulation and the accompanying fertile days quite accurately. Using a fertile days calculator helps you to create a calendar of your fertile days and to keep a marriage diary as a methods of natural contraception.
Pregnancy and fertile days
Doctors stress that couples who know when they are fertile daysand consciously engage in intercourse at that time, are statistically more likely to achieve pregnancy than those who happen to miss the woman's fertile phase.
Ovulation calculator - when do you ovulate?
Fertile day calculator is a convenient and simple way to determine your ovulation date and fertile days. Its other names are: ovulation calculator, ovulation calendar or marriage calendar. To check when your fertile days fall in the following months, enter in the relevant fields of the fertile days calculator:
- The date of the first day of your last menstrual period.
- The average length of your cycle.
The ovulation calculator will calculate the date of your fertile phase and the predicted day of ovulation for your next cycles, in addition to indicating on which days your chances of getting pregnant are higher. You can create your own calendar of fertile days.
Make an appointment for a consultation with cycle monitoring
If you are not yet an Invimed patient and want to be sure of your ovulation date, make an appointment for a consultation with cycle monitoring at the Invimed clinic of your choice. Our gynaecologist will help you to accurately determine the day on which your chances of conceiving are the best.
What is ovulation?
Ovulation (ovulation) is the day in a woman's menstrual cycle when the Graaf follicle ruptures and a mature ovum is released from the ovary. After ovulation, the ovum is caught by the oviduct stroma and is then moved down the oviduct towards the uterus - if sperm are in its path, fertilisation can occur.
Day of ovulation is not the only one in which a woman can become pregnant. The number of fertile days is set at four to six due to the fact that sperm can survive in the genital tract for up to five days, i.e. fertilisation can occur as a result of sexual intercourse that took place a few days before ovulation.
When is your best chance of getting pregnant?
Couples who have intercourse a day or two before ovulation, or on the day of ovulation, have the best chance of conceiving. Calculate your fertile days and try just then.
By design ovulation should take place once a month, but in the case of the growth of two follicles and the release of two ova a few hours apart, ovulation can occur again within the same cycle. This is a relatively rare occurrence, but one that cannot be predicted. Another deviation from the norm are so-called non-ovulatory cycles. These are menstrual cycles during which ovulation does not occur - usually due to severe stress, eating disorders, neurosis or depression.
How do you calculate your fertile days?
If you are planning to start trying for a baby, it is essential to calculate the fertile days in your cycle using the ovulation calculator. Before using a fertile day calculator, record your period dates for at least two to three months to ascertain the average length of your menstrual cycle. You will determine your ovulation day and fertile days even more accurately if, in addition to the calculator, you:
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note the dates of menstruation in successive cycles and record symptoms indicating ovulation on specific days;
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use home ovulation tests to confirm the date of ovulation (diagnostic strip tests detect an increase in the concentration of the hormone LH in a woman's urine); ovulation tests are simple to use and useful for planning a pregnancy, but are not recommended for women with PCOS because, due to the specific course of this condition, they give a positive result despite the absence of ovulation;
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check the basal body temperature first thing in the morning (the temperature drops during ovulation and then rises by about half a degree).
Worth remembering!
Calculating ovulation should not pose a major challenge. However, the ovulation process can be delayed, for example due to a cold or severe stress. Therefore, it is advisable to rely not only on the calendar of fertile days, but also on your own observations and, if necessary, use professional cycle monitoring at Invimed.
Fertile and infertile days
Division into fertile days and infertile days within the menstrual cycle appeals to the imagination, but is largely conventional. For women with regular cycles, it is admittedly possible to observe a clear recurrence in the pattern of successive ovulations - and thus successfully predict periods, days of highest fertility - But the influence of external factors on the ovulation process can never be ruled out.
Relative infertility phase
The first phase of the cycle is the so-called relative infertility phase. It coincides with the time of menstrual bleeding and the maturation of the ovum. Theoretically, fertilisation should not occur during this period, as it is still in the Graaf follicle. In practice - especially in women with a short menstrual cycle - it may happen that the maturation of the ovum is completed earlier and that the sperm present in the genital tract after intercourse shortly after the end of menstruation survives long enough for fertilisation to occur.
Although no relative infertility phase is rather a deviation from the norm, it is worth bearing this in mind when deciding to use a fertility day calculator or the so-called marital calendar as a form of contraception. Refraining from intercourse on fertile days may work if a woman has regular, longer cycles, but you never know if in a given month, for some reason, her cycle may turn out to be shorter than usual.
Fertile phase
Fertile phaseThe fertile phase of the cycle, i.e. ovulation and at least 2-3 days before ovulation and at least one day after the end of ovulation, is the ideal time to try to have a baby (or conversely, the right time to avoid intercourse if the couple is not using contraception and is not planning to enlarge the family). If the mature ovum is not fertilised within 24 hours, it will start to die and thus the fertile phase of the cycle will come to an end. Of course, it is impossible to say "by eye" how long the cell has been alive and ready to be fertilised - perhaps in some women ovulation takes a little longer and thus the fertile phase ends later, when the third and final phase of the menstrual cycle has officially begun: the absolute infertility phase.
Absolute infertility phase
In the days leading up to the next menstrual period there is absolute infertility phase. During ovulation, theoretically, fertilisation can no longer occur because the ovum has died. This means that couples who are not planning a pregnancy and are not using contraceptives can then have intercourse without fear (only the slight risk of a second ovulation in the same cycle has to be taken into account).
It is also important to remember that if intercourse occurred during infertile days, sperm can survive in the woman's body until the fertile days and lead to successful fertilisation.
Pregnancy prevention method
With the help of a fertile days calculator, you can determine when you are least likely to get pregnant. However, it is important to remember that the fertile days calendar should not be used as the only method of preventing pregnancy.
Fertile days - fertility symptoms
Signs of fertility appearing during the fertile days help to confirm the calculations made with the ovulation calculator. Changes in the concentration of sex hormones in the days leading up to ovulation mean that the following symptoms may appear during fertile days:
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acute lower abdominal pain - occurs just before ovulation; may be intermittent or every month; if pain is so severe that it prevents intercourse, a doctor should be consulted as it may be related to endometriosis or the presence of pelvic adhesions;
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thin, clear cervical mucus - mucus during ovulation resembles egg white, namely it is sticky and viscous; the change in the appearance and consistency of vaginal discharge is intended to facilitate the passage of sperm through the genital tract towards the ovum, in addition to having a beneficial effect on the woman's sensations during intercourse;
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breast tenderness - just after ovulation, the breasts are more sensitive to touch and there may be a feeling of heaviness and slight pain;
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increase in libido - When the fertile phase of the menstrual cycle begins, a woman's sexual desire naturally increases; interestingly, her appearance also improves during the fertile days: her complexion is smoother, her lips look fuller, even her movements become more sensual; however, if a woman is stressed or experiencing symptoms of depression or neurosis, she may not notice or feel a greater desire for sex than usual during ovulation.
Hormone levels and menstrual cycle phase
The course of the menstrual cycle (the occurrence of the various phases of the menstrual cycle) is closely dependent on changes in the levels of the individual sex hormones. Ovulation and hormones go hand in hand.
Hormone levels in the menstrual cycle: LH - lutropin, FSH - folliculotropin, oestrogen and progesterone.
In order for ovulation to occur, rising estrogen concentrations during the follicular phase (which lasts from the first day of menstruation to the day of ovulation) must stimulate the pituitary gland to produce luteinising hormone (LH). The increased amount of oestrogen in the body also causes a temporary increase in the thickness of the endometrium, thus preparing the uterus for the eventuality of pregnancy.
During the follicular phase, the concentration of the folliculotropic hormone (FSH)which is responsible for the transformation within the ovarian follicle leading to the mature ovum. The rupture of the follicle and the release of the cell into the fallopian tube requires the hormone LH, which is secreted from the pituitary gland into the blood in the form of a brief peak just before ovulation.
You can read more about folliculotropic hormone on the website: FSH.
Changes in hormone levels during the menstrual cycle can be detected by a blood test, which is why hormone determinations are carried out as standard in women who are trying unsuccessfully to have a baby, as part of ovulation monitoring (this is called cycle monitoring). Determining whether a patient is ovulating is the first step to taking further measures to achieve pregnancy (e.g. to implement drug treatment). To find out more about cycle monitoring, click on the link below:
Cycle monitoring - ovulation monitoring
Consult your gynaecologist
At the beginning of your efforts to have a baby, a fertile days calculator or a marriage diary may be helpful, but in many cases will not give reliable results. If you want to be sure, use the help of the specialists at the infertility clinics Invimed and make an appointment for a consultation with cycle monitoring. During the consultation, a gynaecologist specialised in supporting couples trying to have a baby will carry out a history and a vaginal ultrasound examination (cycle monitoring).
InviMed telemedicine
If your periods are not regular and you find it difficult to identify your fertile days, you may benefit from a teleportation as part of your first infertility consultation. Talk to your gynaecologist about what this might be due to and what tests to do to be sure about your health and fertility.
To arrange a teleportation, call: 500 900 888.
Help fertility with your diet!
Proper nutrition of the body is a very important component of good health. This also applies to fertility. Therefore, a proper diet has an impact on fertility parameters, for both men and women. At InviMed, you can benefit from dietary consultations at the clinic as well as a dietitian teleportation.
We also encourage you to participate in free events led by Invimed nutritionists and to take advantage of free ebooks published by Invimed and created by our experienced specialists, also in the field of dietetics and dietotherapy.