I got told to take paracetamol too!
I'd been in labour with DS for 24hrs, went to hospital to find I was only 2cm dilated ("2?! Check again please ... "), was told I could either stay and go for a walk or go home. I opted to go home and was told "have two paracetamol and a warm bath and try get some sleep".
An hour later I told DH "get out of bed and take me back that hospital NOW!" - 5cm dilated and admitted straight to delivery suite, much better :o
Secretly, you can have stronger drugs when pregnant. At 18wks with DS I had back spams for almost a week and was told if they didn't stop I could have morphing injected into the muscle to relax it. Then at 26wks I fell over getting out of the bath, I twisted my knee, whacked my bump on the edge of the tub, my head on the sink and my shoulder in the floor. They gave me codeine.