I had an intercourse on 3rd july. I was supposed to get my periods on 16th july which i did not get. So i went for a bhcg test on 17th. It came out to be negative. I got my periods on 18th. But i still not sure of not being
pregnant. Can bhcg test be wrong even after 13-15 days of sex. Can i still be pregnant evn if i have got my periods.