Do the hospitals usually allow you to birth in any position?

With my first baby I started off on my hands and knees on the bed as I naturally felt like it was right for me. Well the midwife had a issue with seeing what's going on so I then had to turn over. I birthed my baby with my legs up on the stirrups. I still felt like my body was telling me hands and knees but I had to listen to the midwife. This time with my second baby who is due in a few weeks, would I be allowed to birth however I want?