Hi doc, i need a help. i should have got my periods on 7th april and it is delayed by 3 days now . i have not seen any implantation bleeding before m?

Pregnancy worries?: A positive pregnancy test can tell a woman that PRIOR spotting was actually implantation spotting. It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result about 3 weeks after sex (3 weeks after when conception might have occurred).