If my conception date is between may6th/may10 but i had sex wit ex april22th is he the father or boyfriend since sprem only lives in female body 3day?

Probably boyfriend: Sperm can live in a woman's reproductive tract for 7 days. Medical studies have shown that a woman can ovulate at any time during the month, including during her period. This is a rare occurence, but the only way to know for sure is to do a paternity test.

Probably boyfriend: Since the sperm only live about 3 days it is most likely not your ex assuming conception date was actually 5/6-5/10, however conception dates are not exact and may depend on cycle length and when ovulation actually occurs. Paternity tests may be needed but talk with your doctor.