Mine is too and I am high risk for preterm labour, just spent 2wks in hospital and they stopped it 3 times, but baby's position wasn't the biggest indicator they were way more concerned about changes to the cervix. I believe baby can stay low for ages. If you're worried ask your dr if he'll check or do a transvaginal ultrasound or your cervix but they often wont unless you are showing other signsof early leabour.