Worried

I have taken about 4 pregnancy test lately. I took 2 about a week after missing my period and it was negative. The last 4 have been positive. I am supposed to be 7weeks 1 day along. I am not feeling like a normal pregnancy. This scares me because I had a miscarriage 5 months ago and I felt the same. The difference was I was spotting alot then. I normally get very nauseous during my pregnancy and this time just a few times. Maybe I am just over worrying myself.