I had exactly the same thing when I was pregnant. How far along are you? I started to get it when I was about 5 months or so. When I was sat at my computer at work I would make everyone jump because I would suddenly jolt and go 'ow!' because I would get a jab in the ribs. I assumed it was because my baby was getting bigger and taking up more space. I don't think you should worry about your ribcage not expanding enough.

It's all fun and games isn't it?!!

Yeah I get that alot when I sit and im 37 weeks pregnant but thats because the babys so big it is still in my ribcage (only on my right though which is a pain!) but thats totally normal because the baby has to lay sideways or itll be an awkward delivery lol

Im 27 weeks I think lol

Your wonderful baby is to blame for the discomfort unfortunalty they need to expand somewhere in your body lol no worries after you have him you will be feeling alot better.

Thats good to hear.. I wasnt sure because its only on one side and isnt happening all the time.. But yeah.. Thanks girls:)