Anyone else just not believe it?

I’m nearly 8 weeks pregnant. My first appointment with the midwife is this week for bloods etc, It just doesn’t feel real to me. Don’t get me wrong I feel pregnant I’ve had nausea etc but my symptoms keep coming and going and I’m doing nothing but panic 24/7! I hate it, it’s spoiling my pregnancy and I don’t get an ultrasound until 12 weeks 😩 I never expected to feel like this but I just don’t know how to shake the feeling. Anyone else??

How can I stop worrying and just enjoy it?