My wife's period is delayed by 3months. We had unprotected intercourse for 2 times during these 3 months. She performed pregnancy test (through kit) at home for 3 times but results were negative. Since it is lockdown period we are not able to go out. Although, test results negative yet we are concerned about pregnancy. By the way this delayed period is not the first time she is facing the problem, it happened before also. Please advise on pregnancy and medication to regularize her period