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Find your most important dates. Choose the pregnancy calculator that’s right for you.
Only your physician can accurately determine your due date or the date of your conception based on his/her knowledge of your complete medical condition.
Timing is everything
If you’re trying to fall pregnant, the timing of when you and your partner have sex is critical. Our new online calculator will help you understand your Fertile Window - so you know the best time to have sex to give you the highest chance of conceiving.
When am I most fertile?
The most fertile time in your cycle are the days leading up to ovulation, before the egg is released from the ovary. After ovulation the egg survives for just 24 hours, while sperm retain fertilising capability for two to three days in the fallopian tubes. For this reason, we recommend that couples have sexual intercourse every two days throughout the females Fertile Window. This means that sperm are ready and waiting for the egg when the female ovulates. If you wait until after the female has ovulated before you have sex, you will most likely have missed the opportunity for conception that month.
When does conception take place?
Conception starts at the moment of fertilisation, when the sperm penetrates the outer shell of the egg, and an embryo is formed. Over the next four to six days the embryo moves down the fallopian tube to the uterus, where it implants in the uterus lining and hopefully continues to grow. To check if you are pregnant, you should wait two weeks after ovulation before undertaking a pregnancy test.
Calculate Your Fertile Window
To calculate your Fertile Window, you need to determine what day you ovulate.To do this, you need to know the length of your menstrual cycle (which tends to vary from 23 to 35 days). To calculate this – you should note how many days have passed from the first day of bleeding in your last period, to the first day of bleeding in your next.From this figure, subtract 14 days from the end of your current cycle to determine the day you ovulate.If you have irregular menstrual cycles, or your cycle length varies from month to month, it will be difficult to calculate your ovulation date. Ovulation urine tests may be useful, and you should consider seeking further advice from your GP or a Fertility Specialist.
How long should I try for, before seeking specialist advice?
Conception is a complicated sequence of events because all of the following need to be in place for it to occur:
- Regular egg production by the ovaries (ovulation)
- Healthy sperm, with the ability to move (motility) and the correct shape (morphology)
- Unblocked and healthy fallopian tubes and uterus
The number one factor affecting a couple’s chances of conceiving is the woman’s age. The number of healthy eggs a woman’s ovaries contain will dramatically decline with age; and especially for women over 35. Most people start to consider seeking professional advice after six months of trying to conceive naturally without success. This is even more important if you’re over 35.
Want to know more?
If you’re keen to know more about the menstrual cycle, read about female reproduction….
If you’d like to consult with a Fertility Specialist about irregular periods and ovulation, or difficulties conceiving naturally, then please contact us.
Ovulation Calculator
Calculate your most fertile period days
If you know when you ovulate, you can increase your chances of getting pregnant. The reason for this is that you’re most fertile during your ovulation.
What does ovulation mean?
Ovulation is a part of your monthly cycle. Your ovulation occurs during each menstrual cycle, this is once a month. During ovulation the mature follicle bursts, this releases the egg and makes its way to the fallopian tube. The egg can be fertilized up to 24 hours after ovulation. Is the egg not fertilized? Then it will dissolve and your period will slowly begin.
When is my most fertile period?
To get pregnant, it is helpful if you know what your most fertile days are. To find out, you need to know what your menstrual cycle is. An average menstrual cycle lasts 28 days, where day 1 is the first day of your period. Approximately half of that cycle (day 14) the ovulation takes place and you are fertile. Below you will find a handy schematic representation of your most fertile days.
How do I recognize ovulation?
You can recognize ovulation by the following ovulation symptoms;
- Ovulation pain
Ovulation can be felt by pain in the lower abdomen, also called ovulation pain. It is somewhat similar to menstrual pain and may feel like a stabbing pain around your fallopian tubes. This may last for a few hours. - Rising or lowering body temperature
During ovulation, your body temperature will drop about half a degree, but shortly after it will also rise again with about half a degree. By taking your temperature several times a day, you will know when your ovulation has occurred. The only drawback is that by the time you find out, ovulation has most likely already occurred and your most fertile days are already behind you. - Change in discharge
During your fertile days you will notice that the mucus from your cervix changes in structure. During your fertile period, the cervical mucus is transparent and elastic. It feels like it is slippery and wet. Before and after your fertile days, the mucus is creamier and a lot stiffer. - Sensitive or sore breasts
Because of the change in your hormones, you may experience sore or tender breasts during your ovulation. - Breakthrough bleeding
During your ovulation, you may experience light bleeding, also called breakthrough bleeding or ovulation bleeding. On the day of ovulation, you will lose a few drops of blood which may cause a brownish discharge. Breakthrough bleeding of this kind can do no harm, but it does indicate when ovulation occurred.
Tip:
Keep track of when you ovulate, you can do this in your calendar or there are also very useful apps for this. This way you have the best chance to get pregnant in your fertile period.
What if you do not succeed in getting pregnant?
If you do not succeed in conceiving, it may be due to many different things. It is possible that an ovulation does not take place, the egg cannot implant or there is infertility.
Within a period of one year, the chance of becoming pregnant is considerable. Do you want to get pregnant, but feel like it’s not going to happen? Then it is wise to discuss this with your doctor. The doctor will take some tests or refer you to a gynecologist or a fertility doctor.