I am a constant worrier

I am 12 +3 and I have my check up at 12+1 after I came home from doctors I've been having severe pain in right groin and middle of uterus. It hurts like when I get in and out of car, up and down off couch, crawling out of bed, laughing, coughing, sneezing, and sometimes walking. I am worried this pain will hurt baby. at appointment they found heart beat on Doppler and it was 164. called ob and they said as long as there no bleeding it was round ligament pains but has anyone had theirs to last for days.