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If you are sure of ovulation, then pregnancy chances are high with your intercourse dates. Look out for symptoms suggestive of early pregnancy.
The egg is known to be resent (alive) for 3-4 days after ovulation. The sperms can survive inside the female genital tract for upto 48 hours, so chances of pregnancy cannot be completely ruled out. If your cycles are of 28-30 days, then your probable fertile days would be from 8th-16th day taking day 1 as first day of bleeding.
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