freaking out now about something being wrong

As I approach my due date, I'm still not worried about being a mom or anything. For whatever reason that's never scared me but I haven't had an ultrasound since 23 weeks(everything was perfect) and my husband lost a baby during delivery with his ex so now I'm
Panicking that something is going to go wrong or that something is wrong with my baby that they couldn't tell or something. Ah I'm going crazy. Anyone else having a freak out like me?!?