Cramps that are in your lower back by your tailbone that wraps around to the pelvic area.. trapped gas or uterus stretching?

Alicia

I woke up at midnight with this weird cramping/pain (not sharp pains). It felt like I had to poop really bad but I tried and couldn’t go (but did have some gas which relieved the cramps somewhat). I took some tums and it eventually went away. I’m 6w4d.

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