I am 31 wks as of yesterday and have been super cleaning. My son was fully engaged last week but I…

I am 31 wks as of yesterday and have been super cleaning. My son was fully engaged last week but I just sent down to get laundry out of my dryer and had a majorly painful contraction, now he is super super low... His booty is sitting just bearly above my belly button. Never had this happen before! Any suggestions?