how fertile are you on the first day of your period?
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Most women's menstrual cycles last about 28 days, from the first day of their period to the first day of the next period. Because the egg can survive for 24 hours after ovulation and sperm can live inside a woman for up to five days, a woman can get pregnant starting five days before ovulation and ending a day after.
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Among the 69 cycles for 28 days in our study, ovulation occurred 14 days before the next menses in only 10%. Time from ovulation to next menses ranged from 7 to 19 days (days 10 to 22 of the menstrual cycle). Thus, the fertile window can occur much earlier or later in the cycle than clinical guidelines suggest.
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The best time to get pregnant You're most likely to get pregnant if you have sex within a day or so of ovulation (releasing an egg from the ovary). This is usually about 14 days after the first day of your last period, if your cycle is around 28 days long.
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It's more likely that you'll get pregnant from intercourse on the last day of your period if you have a shorter menstrual cycle. Your body ovulates — releases an egg from your ovaries — about 14 to 16 days before your period.
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The likelihood of getting pregnant right before your period is extremely low. For women with a typical 28- to 30-day cycle or longer and their cycles are regular, it is fairly safe to say your ovulation occurred between Day 11 and Day 21. The egg is only available for 12 to 24 hours for conception.
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There are only a few days per cycle when a woman is fertile and can conceive. Evidence shows that this time of increased fertility usually spans 6 days, starting approximately 5 days prior to ovulation and ending on the day of ovulation itself.
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You have longer cycle -- there are 33 days between periods. This means that you will most likely ovulate on Day 19. So, your most fertile days are Day 14, Day 15, Day 16, Day 17, Day 18, Day 19, and Day 20.
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Understanding your menstrual cycle You're most fertile at the time of ovulation (when an egg is released from your ovaries), which usually occurs 12 to 14 days before your next period starts. This is the time of the month when you're most likely to get pregnant.
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Can you be fertile on your period? The simple answer is yes. While women are not able to conceive whilst on their period, sperm can survive within the female reproductive system for up to five days. This means that some people have a chance of becoming pregnant from unprotected sex during their period.
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You are moving into your fertility window, so yes, you can get pregnant right after your period. On a typical cycle that occurs every 28 to 30 days, the fertility window is usually between Day 11 and Day 21.
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For a woman whose cycle is 24 days, ovulation happens around day 10 and her most fertile days are between days 7 and 10, while someone who has a 35 day cycle will be most fertile between days 18 and 21.
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A person is most likely to get pregnant if they have sexual intercourse in the 3 days before and up to the day of ovulation. Since a person with 28-day cycles typically does not ovulate until around a week after they stop bleeding, they cannot usually get pregnant during their period.
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This is because ovulation generally occurs 12-16 days before your next period begins, and this would estimate you ovulating at days 6-10 of your cycle.
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You're more likely to be fertile around days 19-25. If you have a shorter cycle – for example, 23 days – you might ovulate around days 7-13." Read more about the menstrual cycle and fertility.
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Calculating ovulation Most people ovulate between days 11 and 21 of their cycle. The first day of their last menstrual period (LMP) is day 1 of the cycle. Ovulation does not always occur on the same day every month and can vary by a day or more either side of the expected date.
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This process is called ovulation and the days 12 to 16 days after a period are said to be a womans most fertile period.
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Conception is possible during the 'fertile window' – the five days leading up to, plus the day of ovulation. The chance of you becoming pregnant is greatest if you have sex during the two days leading up to or on the day of ovulation. Ovulation happens about 14 days before your period starts.