Normal orrr????

Today I’m 31 weeks & 4 days.... I’m having extreme pain & pressure in my lower abdomen & vaginal area & it hurts so bad to stand up straight, plus some Braxton-Hicks contractions that are VERY uncomfortable. Is this normal? I’ve been drinking loads of water & only thing I’ve did today was grocery shopping.. this has been going on for about an hour now. ANY ADVICE OR OPINIONS ARE WELCOMED!!