33 weeks and cramps from nipple stimulation?

Nicole

Last night I expressed some colostrum from my right nipple. Just checking to see if I can. This morning I expressed from my left nipple. Again, just checking out the changes to my body. I cleaned the bathroom this morning and all day I’ve had constant period type cramps in my low abdomen and back and down the front of my thighs. Could I have caused some type of contractions due to nipple stimulation?