i ate letryl and systain for concieving periods missed from last 2 months 15 days ,home pregnancy test is negative ,did i will test another time plz suggest me ,hormons irregularity is a problem for me i had ate letryl and sustain to concieve ,i took home pregnancy test 3 times but negative result ,2 months 15 days periods missed what is my condition is am pregnant or not did i will repeate pregnancy test again .plz suggested me letryl tab are very powerfull or not