Is Pelvic Pain Normal During Pregnancy ?

Hi im 35 weeks pregnant and i have been having pain right above my pelvis, im not sure if this is because her head is down there or there is something wrong, occasionally i do have pain all over my stomach but its fairly constant down there, a little history about me, im 21 years old first time mum with pre existing hypertension it is usually around 140/80 my Dr has put me on medication but it doesn t seem to be working (i don t have preeclampsia, well i didn t when i last went to the Dr) i had a ultra sound 5 days ago the Dr said my baby was spot on average she was 2.5kg which apparently is average the only problem was my amniotic fluid was a little low it was 10.4 so should i go to the hospital or do you think everything is ok? i need advice please! oh my baby is still moving around not a lot but she has never been very active...