I am on birth control, but the last time I had a period was 1/20/07. I was waiting for my period to start in February, but it never did so I did not start my next pill pack. I haven't had sex since 2/15/07. I have taken 5 pregnancy tests in the last 5 weeks, since my 1st missed period, I am now missing a 2nd one, it still hasn't come for march yet either. All of the pregnancy tests are negative. I would not carry out a pregnancy because of the Methotrexate & would need to know about the pregnancy ASAP. Could really be getting a false negative on the pregnancy tests after this long? I do not "feel" pregnant either. Should I just make an appointment with a Dr.? Thanks! I really appreciate any insight you can give me!