Sharp Ab Muscle Pain?

So when I sit I get a nagging muscle or maybe ligament? (Not so good with anatomy) pain under my right boob where my ab used to be (29 weeks) ... I'm super paranoid I might tear something because sometimes when I move I get really sharp pains. Has anyone tore there before? I told my doctor about the nagging pain and she said that was normal but since my appointment I've had a couple of incidences where it's be sharp pain... any experiences or tips would be great!

The pain would be where my hand is