Help ease my mind please 😩

Nicola • Mommy to the most loved, beautiful angel in heaven.. Giovanni Antonio Brown born January 21st, 2017 👼🏽❤️ My beautiful rainbow baby Ezra was born December 20th, 2017 🌈👶🏽💙 now expecting baby #3 12/2021 🥰
I'm 7 weeks pregnant and I just don't have any symptoms besides frequent urination, I just can't get this idea out of my mind that something isn't right 😕 my first appointment isn't for another week and a half & I'm going crazy thinking I've had a missed miscarriage or blighted ovum but I'm also trying to stay positive! I just want my first ultrasound, I want to hear a strong heartbeat but I'm also terrified because the last time I went for an ultrasound I was told my son no longer had a heartbeat. Is it normal to not have any symptoms at 7 weeks?! With my son I had morning sickness, food aversion but now this time around I have nothing. It's just pure torture not being able to know if my little bean is okay until I'm almost 9 weeks 😩