I was wondering if any of you mommas have gotten a hernia in your pregnancy? yesterday I started…

I was wondering if any of you mommas have gotten a hernia in your pregnancy? yesterday I started having a stabbing pain when I used certain stomach muscles in area about as bis as a quarter under my belly button. I can feel what seems to be a lump when I feel through by belly button but there's no other outward sign. also walking around today made it feel like I was messing with a sore bruise without having to touch it. I have a dr. appointment on Tuesday but I'm wondering if this is serious enough to have to go in early? TIA!