my LMP was may 11 2015 up to the 16th. i had sex with another guy using protection on may 18th, my fertile window began may 20th up till the 24 and i ovulated on the 25th. aside from the 18th at which time i wasnt ovulating and had protected sex with this other guy, i only had sex with my boyfriend unprotected during my fertile and ovulation window....but i am just so scared as to whos responsible. and i am 5 weeks gone and due febrary 15th, 2016
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Hi Malikka,
You period started on May 11. You likely ovulated between May 22 and 27. Sperm can survive up to about 5 days.
If you used protection correctly and before there was any sexual contact, your boyfriend is the likely father.
A due date of February 15 is correct for an LMP starting on May 11. Doctors base dates on your LMP because most women know exactly when that was. It won't tell you when you conceived however.
Hope it helps.
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