I am 22 years old, I have a very regular cycle. Last month I started my period on the 13/04 and 17/04 (which is normal), but then I started again on19/04 and finished on 24/04 and then I started again on 26/04 and ended the 30/04. The last two times I got it, it was not like normal, it was when I urinated and was very strong. It is now the 17/05 and I have not received my period. Should I be worrying. The last time I had unprotected sex with my husband was 8/04, but still sexual active with protection. Does anyone have advise for me?