16 weeks and so scared

I'm so scared of losing my baby. Idk why but this app makes me feel like it's so common. I thought after 12 weeks generally you're safe. But now I'm hearing so many women lost their babies at 15,16,17, 20 weeks and on. It's so scary. I've already announced it, found out the gender, seen her a billion times, and felt her move and everything and every time I go to the bathroom I check for blood and I'm just so paranoid I want to stop. I'm scared of having some weird problem that goes undiagnosed like an incompetent cervix or something since I haven't had a pelvic exam in years.