Horrible Cramps before BM

Mandy • 29 years old - Married October 2013 - Mom of Baby Girl Dec 2015 😊 Expecting Baby Boy April 2018 ☺️
I have horrible cramps for about 45min-hr before every BM. I'm going somewhat regularly (once a day to every other day) and it's not diarrhea (sorry, tmi I know) but soft. It has me freaking out a little bit and I'm not sure if it is normal. I'm currently 4 weeks 4 days and have my 2nd beta tmw. Has anyone experienced this??