posted 3rd Oct
Very low. Not impossible but sperm only live about 5 days in prim conditions and most women don't ovulate until 2 weeks after their period starts.
If you DON'T want to be pregnant you need to think of another source of birth control. If you DO want to be pregnant then have sex closer to your fertile period. You can find out your fertile period with OPKs, tracking your temperature, or just have sex a lot.
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