21 weeks ab muscles feeling tight

Kelsey

Hey!! Needing some thoughts! Tonight while finishing up some housework after dinner I noticed my belly felt really right. I don’t feel like I ate too much because that does happen often but not tonight. It’s like my abs muscles feel sore/tight. Like I’ve been laughing all day or something. It’s not painful whatsoever and nothing feels like period cramps. Just a strange muscle tightening that has me worried. It’s been constant since I noticed it 15 minutes ago but I don’t feel it as much when sitting down. Any experience with this? Is this just everything growing and stretching?