braxton hicks or something else

so im 33weeks pregnant and for about 2-3weeks now i get pretty bad abdominal cramps/pain sometimes in waves other times itll literally hurt to walk where i have to stop and just wait for it to pass.my stomach doesnt tighten up at all just the pain and sometimes pressure in my vajayjay.yesterday i had some lower back pain but it wasnt intense just kinda uncomfortable. ive asked my mother in law about it (sincr shes gana be the one to take me to the hospital when the time comes) and she says to wait til my water breaks other than that not to worry but im honestly worried..i dont see my midwife for another two weeks and even then shes kinda no help...this is my first pregnancy and honestly have no idea what im supposed to except...