Hi. I am wondering if anyone could give me advice or their input please. My last period was nov 26, 2010. On dec 14 I had unprotected sex. To this day I still don't get my period. I took three urine home tests already. The last one was negative and I took it on Monday. I am not stressed out don't exercise haven't gained or lost significant weight. And I've never missed my period. What's wrong with me? I have been having very mild cramps since last month. I also get backaches.

It may be that you just skipped a period, it sometimes happens even if it never has before. You can wait and see what happens when your period is due this month and test again at that time if still no period, try another pregnancy test this weekend (following the directions exactly), or see your doctor about having a pregnancy test done there.