My husband and I have been ttc for just over a year and a half now. We got excited after I was 2 weeks late for my period and I took a pregnancy test, which was negative. I have been a little late for periods before so I figured that was all this was. However I am now 49 days late and still getting negative results. I have never been this late before or even close. I have an appointment with my ob/gyn tomorrow, but I'm a little anxious. I know that sometimes stress over getting pregnant can cause your period late, but I would be surprised if it would be this late. Anything else that might cause this?