Itchy bumpy spot under belly button above V

I have this bumpy, hard spot on my lower belly a little underneath my belly button... I’m 8 months pregnant and it’s been there for about a month now. It occasionally gets EXTREMELY itchy especially at night ... not sure what this is?? My MIL says she thinks it’s normal but doesn’t know why it’s happening. It’s literally a ton of bumps in a little area that has an itch especially at night and is hard... if you pinch it, it kind of reminds me of how a callus is (hard) but not so severe. That’s the best way I could explain it .. normal?? I’m going to ask my midwife on Friday at my appointment but I was wondering if anyone else experienced this?