I though i had implantation bleedind for 3 days then a heavy period came a week later. now my husband is having symptoms of a pregnant women?

Pregnancy worries?: A urine pregnancy test gives a woman a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her NORMAL regular period, then she is not pregnant, and a test is not needed.