37 weeks pregnant

Hi everyone,

I'm 37 weeks pregnant today and have been feeling quite a bit of movement in my belly for a few weeks now. Since today, I've been getting this weird feeling, like a 'heavy' sensation in my uterus, and my breathing is speeding up. Does anyone have any idea what this could be?

I also keep feeling like I have cramps in my intestines. Hope someone knows what it might be...