Lower ab pain

Ashley • stepmom to 9yo and 5yo; baby #3 born 02/04

I spent the last two days with my stepkids at a waterpark (I just stuck to the wavepool) and now my lower abdomen aches like I’ve done a thousand crunches.

Did I just overdo it? Or is this typical? (Prepregnancy, I had no abs to speak of). Anyone else have this?