I don’t feel like I’m pregnant

Im 8 weeks almost 9 weeks on Wednesday.. I feel super nauseous and food aversions and everything. I had my first ultrasound and got to see the heartbeat and all that but is it weird that I still don’t actually believe Im pregnant even though I saw my baby on the ultrasound...? It’s just so weird. Idk if Im just in denial because we tried for a year and a half? I just thought when you’re pregnant that you would feel different like feel the baby somehow..? Idk how to explain it. Tell me Im not crazy lol... Is this normal??