Not sure.

So I am 23 weeks and the past week I’ve been getting this sudden urge like I’m going to have diarrhea, but I can’t go to the bathroom because nothing happens. It just feels like pressure In a way. I am not constipated because I do go to the bathroom throughout the day. Then I feel like I’m having period cramps. Then later on in the day I do actually get diarrhea. I thought maybe the pressure was Braxton hicks, but they have been so frequent that I’m not sure anymore. I called my doctors office and my doctor is out today and tomorrow for an emergency. Any ideas ladies?