Post C-Section Pregnancy

Shianna • Due October 26th with baby #2!
I had a C-Section in August of last year, and I'm 20 weeks pregnant now. I'm having some pain in the muscles around my incision site (it's not crazy pain or I'd call the doc) I'm guessing it's just because the baby is getting bigger and I haven't fully recovered from giving birth, but I was wondering if anyone else felt this or is feeling this at around 20 weeks? It's like my muscles are seriously straining and makes it hard to carry my chunky 9 month old.