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Ovulation Calculator

Fertile Days Charting Fertility

Ovulation calculator is a helpful tool to identify and predict the most fertile days in a month. Its apparent that the menstrual cycle changes month to month and so does the change for every women.


This tool cannot and should not be used to prevent pregnancy. THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the SWCIC Site. If you think you may have a medical emergency, immediately call your doctor.

For more details, SWCIC- the best test tube baby center in Hyderabad India can help you with the counselling session.
Know your cycle – Day by Day
Days 1-5
  • From Day 1, if you are not conceived, your menstrual period begins and it continues till the 5th day of menstrual cycle by passing menstrual fluid through vagina. The fluid is discharged when the uterus sheds the blood vessels and the soft tissues from its inner lining. This leads to a low level of estrogen and progesterone, and the body temperature is of 96- 98°F. The muscle contraction of the uterine may induce abdominal cramps in many women with a blood loss of 10- 80 ml in these days.
Days 6-7
  • These days, the brain structure- Hypothalamus and Pituitary gland plays an interactive role wherein the hypothalamus secretes Gonadotropin Releasing Hormone (GnRH) and as a result Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) are released by the Pituitary gland, in turn to GnRH’s request. These two hormones stimulates either of the ovaries to get prepare for supporting the growth of eggs or follicles. In the next stage; the eggs start growing by producing estrogen. The progesterone level remains low and the cervical mucus is of little or no mucus.
Day 8 (May extend to Day 12)
  • The increased level of estrogen secretion makes the uterus lining thicker. This promotes a richer blood supply and the follicles that surrounds the egg starts increasing its size, which all leads to the preparation of receiving the fertilized egg.
Day 10
  • This day; the mucus turns to wet with sticky/ cloudy/ whitish/ yellowish secretions.
Day 12
  • This period comes with more chances of getting pregnant with high level of estrogen. The mucus turns so clear, slippery and stretchy as well that signals you that ovulation is near. The thickened lining of uterus signs that it is all set to house a fertilized egg. The sperm can survive in your body from even 2- 5 days after the intercourse and for the same reason; if you have sex on 12th day; there is more chances of getting pregnant.
Day 13
  • Here; a chain of processes are taking place inside your body through estrogen, LH and progesterone. The peak level of estrogen induces LH and in turn, LH stimulates progesterone synthesis that leads to the rise in FSH. Your body temperature can rise up to 4/10 and 8/10 degree within 12 hours of ovulation. The temperature continues as high till your next menstrual period, if you are not pregnant.
Day 14
  • As a result of the sharp fall in estrogen, the LH surges that induces the ovary to egg release. The egg can live almost 12 to 24 hours.
Day 15 (may extend to Day 24)
  • The egg moves through the fallopian tube and the empty egg follicle which is now called as the corpus luteum starts secreting better amount of estrogen and progesterone. This supports the uterus for a possible pregnancy. Also the levels of FSH and LH begins to drop here.
Day 17
  • The corpus luteum keeps on producing progesterone and if your body temperature continues to stay high for the three days, that is a sign that your fertile period is over.
Day 18
  • The cervical mucus turns cloudy in this stage.
Days 21- 22
  • The level of progesterone rises to the peak.
Day 25
  • As the corpus luteum breaks apart, the progesterone levels starts to fall. Along with that, your body temperature will also drop. If the progesterone level continues as high; then that signs about a positive pregnancy.
Day 27
  • Due to the lack of corpus luteum, the mucus becomes dry or it is absent.
Day 28
  • As a result of regression of the corpus luteum, the level of estrogen continues to fall along with progesterone production. Hence, the mucus becomes thick. You will get your next period on the 29th day if you are not pregnant. Our counselling session at SWCIC- one among the famous fertility centers in Hyderabad India can help you with additional details.
Here are few signs and tips of pregnancy:
Prominent signs during ovulation :
  • There might be change in the body temperature; it could rise to 1 degree during ovulationA urine test confirms that there is an increased level of LH, luteinizing hormoneA discharge form vagina, called cervical mucus is apparently clear and thinnerBreast TendernessBloating in abdomenA Very low spotting
  • A very less pain in either side of abdomen
Tips for pregnancy:
Have Unprotected Sex on a regular basis
  • Indulge in the unprotected sex often, More than 80 % of the couple get good news when they have sex often .It is advisable for the couple to have sex every alternate day during the month, the more the better: The best time is 3 days prior ovulation and 2-3 days after you felt the ovulation is done
Don’t rush after the act
  • Stay low on the bed after sex, to enable the sperm to swim through the channels upstream: do not rush to the bathroom as soon as you are done with the act. Give proper minutes after sex with your partner.
Enrich the real experience
  • Many research studies have stated that using artificial prays and mood changing lubricants impacts the vaginal acidity: Refrain yourself from using artificial lubricants and try enjoying the real and rich experience through the act.
Get Familiar with your ovulation cycle
  • It is absolute necessary to identify when you ovulate and what changes the ovulation brings in to your body. There are many kits available in the market which predicts the ovulation and you can take help form the charts too
Relax and avoid stress
  • Getting pregnant should be the most pleasant experience in a female. Avoid stress and frustration, and indulge in yoga, meditation, brisk walk etc to stay positive and healthy. Do not let the stress overcome you; proactively participate in exercising regimes which helps lower your stress.
Balanced health and weight
  • Reproduction process will be healthy only when you maintain health and wealth to the accepted level: Do not be too skinny or too overweight. Reproduction of hormones needs healthy BMI ranging in 18-24
  • For all your queries, you can approach us at SWCIC- the best IVF center in Hyderabad India.
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