Contraction ALL day

KP
I'm 23 wk. my hubby and I had sexy time about 30 mins after I couldn't even walk due to severe pressure down there and contractions. I couldn't stand/walk... Now I can walk and stand a little and even sit without pressure. But still having contractions that actually hurt, but can breath through. This is my second--but my dr said its normal?!? Sounds strange....