need opinions!

ok so I'm 31w1d and ive been getting these cramps in my upper abdomen, kinda like where my ribs are, and they're not super intense but they do hurt. they're not consistent at all and they don't happen a ton (about 5 or 6 times last night and then a couple times so far today) and ive also been getting nauseas when they come. and im not sure if this is related or not but ive also had diarrhea. is this normal or should I be concerned? before anyone says anything, I called my drs office, just waiting on a call back!