Hi. I'm just concern about my period cycle. I've have my period regularly since I became sexually active. But last dec.11 I didn't have my period. After 10 days of missed period I took a Pregnancy test and it says negative. After 25 days of missed period I had PT again and it says negative. In short I didn't have my period last December. I was expecting to have it this January because the PT is both negative but it's already the 13th and still doesn't have my period. I took a test again the other day and it still says negative. Hope you can help me figure it out. It's becoming a stress now because my husband and I are just starting and we're not really planning a baby anytime soon. Is there still possibility that I'm pregnant? Thanks.

Are you taking the test first thing in the morning, as soon as you wake up ?

But it can also be various hormone issue, STD, infections and other problems like stress, worry, change of activitys, starting new job, money problems and so on.

You should consider going in to doctor for a blood test also, since some women don't show positive by a urine test until 3 or 4 month sometime.