I already have 2 children so you would think I would know what it all feels like. I have not had a period since well before Christmas. I took 2 pregnancy test and they both came back negative. However, with both my othr children I had negative preg test and had an ultrasound for the first and a blood test for the second. I am worried because I take anti-convulsant meds for seizures (i take two different kinds to control them) and I read somewhere that anti convulsants could mess up the test. I also know for a fact one of the meds can cause fetal abnormalities, i want to know if this is true, the part about anti convulsants messing things up. Any input would help me so much...