Chest pain / pressure ??

I’m 31 weeks and 2 days and earlier I was laying on the couch I sat up and I suddenly got a pain in my chest and back between my shoulder blades it went away as soon as i sat back down . I was laying down and ended up falling asleep for maybe 10ish min and the pain is gone but I still feel like I have pressure in my chest . Not strong or painful but it’s enough for me to notice it . At all of my appt my blood pressure and everything has always been good no worries other than me having low iron . All day I have felt like very bloated or full like I have to poop . I also feel baby boy right in my ribs sometimes now so I’m not sure if that has something to do with it . Has anyone else gone through this and it be nothing ? When I take in a deep breathe I can feel the pressure more kind of like an ache