Anyone else feeling..."not pregnant"?

Laura
So I'm 15 weeks, and I feel great! I had minimum symptoms from day one, (fatigue, backache and bloat) but nothing really more. I've felt stretching and twinges when I move a few weeks ago, but now I feel like now nothing's going on!!! Makes me worry! Dr appt in 2 weeks. Seems so far! Anyone else feeling this way?