The women responded to questionnaires detailing characteristics of their menstrual cycles, and after taking a good look at the data, researchers determined that women with short cycles 26 days or fewer had lower odds of getting pregnant. Similarly, women who started menstruated before age 12 had reduced fertility when compared to women who started menstruating between 12 and 13 years old.
According to the study's authors, a short menstrual cycle could signal a narrow fertile window or ovarian aging, and may also reflect a lack of ovulation we don't have to tell you how important ovulation is when you're trying to get pregnant!
While the link between early onset of menstruation and fertility isn't quite explained, it's an interesting one to consider—and Boston University's Pregnancy Study Online initiative is ongoing, so hopefully we'll have a clear picture of how this works soon.
Does this mean that women who have short cycles or got their periods early in life can't get pregnant? Like most other studies, this one represents one slice of the population and these results definitely shouldn't get you down if you're trying to conceive. By Zara Husaini Hanawalt November 08, Save Pin FB More. Preparing Girls for First Period: Menstruation supplies. By Zara Husaini Hanawalt. It cannot and should not be used as an aid to preventing pregnancy. This calculator is provided for educational purposes only.
It is not intended as a substitute for professional health care. Always consult with a healthcare provider for advice concerning your health. Given the information you provided, your next ovulation date is estimated to be. You are likely to be most fertile on the day of ovulation and during the 4 or 5 days just before ovulation. Studies have shown that to increase your chances of getting pregnant, you should have sex once a day or every 2 days during your fertile days.
Sperm can live for a few days and the egg can live about a day. Most experts suggest you try every other day or every day starting about 5 or 6 days before you expect to ovulate. Use the calculator to see which days you are most likely to be fertile. If your period starts:. If your menstrual cycle is:. Your estimated fertile window is:.
Your estimated ovulation date is:. You are most likely to get pregnant if you have sex without birth control a few days before your ovulation date. This ovulation calculator provides an estimate of your fertile window and is not a guarantee of pregnancy or of birth control.
The calculator and information on this website are not medical advice. Talk to your doctor or nurse to plan for pregnancy and find birth control that works for you.
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