My gf miss her priod.and she has always get priod 2 month.in janyary 23 having sex for just 5 seconds till today date march 17 she did not get her priod.she test home prag ancy test are negetiv(total 4 test negative) all test date. 3 march second test 4 march third test 12 march and forth is on 13 march all test are negatuve.all test done in morning.but only problam is that she dis not get her priod.and her priod cycal is very irregular pls.her wait is 39 kg.because of this she is suffering lots of tress.