Anyone try for awhile and now this pregnancy seems too good to be true? I'm so paranoid something is wrong

A❤️C

We tried for about 15 months and saw an infertility doctor (this is baby#2). And the tests picked up things wrong with both of us. We thought we may need <a href="https://glowing.com/glow-fertility-program">IVF</a> to even conceive. But low and behold I'm pregnant. And sooooo happy. But I got this like constant sense of doom. I'm so paranoid that something is wrong and that I'm going to have an ectopic or something. I scheduled a private ultrasound for 6 weeks on Thursday to ease my mind (I did this with my first baby and saw a heartbeat, it helped) but I'm so scared somethings wrong I'm thinking about canceling it so if something is wrong it doesn't ruin my Christmas. But then again I think most likely everything's fine and it will make me feel better. Ugh just venting. I've never had a miscarriage or anything but I think seeing infertility made me question my bodies capabilities, wish I never would have went now lol A lot of sadness and stress for no reason.