Someone ease my mind... 6w2d symptoms fading away

I got 3 very positive pregnancy tests (one at doctors office) around 4 weeks. My first ultrasound is at 9 weeks, in about 2 weeks.

Idk why I’m panicking... maybe because my husband said that a Co-worker warned him it was bad juju to tell people im pregnant before my first ultrasound and that it will lead to there not being a heart beat. Or maybe because I had a miscarriage a few years ago.

Anyway, now I’m overthinking everything! For example I don’t have morning sickness anymore and my cramps aren’t as bad. But I still have the same pregnancy CM, my boobs are always tender, and I still need to pee all the time.

I know everything is fine, idk why I’m panicking. I just found out what a missed miscarriage is where there is no bleeding and now I’m going to be paranoid I’m going to have one or already had one.