Pregnant with second baby, brain in overdrive.

[Mumimi]

Hello everyone, sorry for the non specific subject title, newbie, didn't know what to write!
I have my first scan next week, and I'm spiralling a little. I had my first baby in March last year, but this is my 4th pregnancy, as before her I had a missed miscarriage and an early loss.
I'm just wondering if anyone knows the likelihood of another missed miscarriage. Obviously I don't like this scan as that was when the missed miscarriage was detected before and because of covid restrictions my husband can't attend the appointment.
I guess I need some reassuring!

I couldn't write a lot in my post!
I think whats playing on my mind the most is having previously had the missed miscarriage so this looming scan is scary, but I also feel less pregnant? I didn't have many symptoms last time, but this time felt pretty rubbish and now I almost feel normal!
This baby was conceived within 2 weeks after having 'the conversation' about giving my daughter a sibling, it took quite a while to get pregnant with her so we assumed the same would happen again (sorry if tmi) so seems too good to be true!