How much pain is normal?

This is my first pregnancy so I am trying to figure out what’s normal and what isn’t. I am 13 weeks 4 Days and I noticed more recently that I feel like I have slight twinges of pain throughout the day in my uterus area. Nothing to make me cry or bend over about but still noticeable. I heard this is just your uterus growing and also your round ligaments stretching. Did anyone else have these slight pains constantly? I have my second appointment on Wednesday!

(Baby is still alive. I check everyday with my fetal Doppler 🙏🏼)