Achy on run

Hey ladies, finally got some energy back so I decided to have a nice run. I didn’t go too hard but couldn’t help but notice an achy feeling in my lower abdomen where the baby sits. Has anyone else experienced this? I also had a clump of discharge in my underwear when I was done and am hoping it’s not some of my mucus plug that came loose...

Hoping this is all normal but also a bit nervous to try running again.