Do you ever go through a phase where you dont fee pregnant

I'm 6 weeks pregnant and I really dont feel pregnant. I had a miscarriage 2 years ago. it had stopped growing at 5 weeks and i carried for 11 before i found out. so every little thing is making me nervous right now. if my back hurts a little or a little light headed or if I have a slight cramp. other than feeling sleepy more often than usual, I really dont feel pregnant. I haven't had any hormonal mood swings since the week I found out. anyone else feel this way? my first doctor appointment is Monday and I anxiously waiting for them to tell me every thing is looking good so far.