So this is my 3rd pregnancy but to my knowledge I've never experienced round ligament pain before so I'm not familiar with it and if what I'm experiencing is round ligament.

I'm 18w and had my anatomy scan yesterday and it was fairly uncomfortable due to babys position. Now today between my belly button and public bone is VERY sore and painful. Bending walking etc is very uncomfortable and painful. Feels kinda like a bad pulled muscle. The only way in comfortable is laying or sitting with my feet propped up. Does this sound like bad round ligament pain or something else?