I feel like I’ve done the toughest ab workout ever, my lower abdomen is so painful!

I’m 3 days late, achy boobs and high temp, but have been holding off doing a test in case it was negative.

This will be my second pregnancy, with my first I ended up having a c-section, with it ending in having dissolvable clamps placed on my womb (I was wasn’t contracting so this was supposed to help)

I wondering now if the muscle pain is from the uterus stretching, but would I feel it so soon?