Scary thought

Ultrasound today, she's already measuring 3 pounds. If I go by the 14th I'm 27 weeks and 3-4 days. If I go by today I'm 29 weeks 4 days. I know it's all estimated.

But I asked my OB about a pain that knocks me down after standing for 10 minutes, apparently she's already trying to dislocate mommy's rib  
Doctor say's it'd suck but she wouldn't be surprised if baby broke one by the time this were. I've still got 11-13 weeks to go. And I don't feel that big in the belly and she's already pushing ribs out. Anyone ever had a broken rib with their pregnancy?

I've never heard of it. Doesn't mean it can't happen. But I think it's pretty unlikely.

What about dislocating. My OB felt around and she say's that's what's starting happen now. And there's not much you can do about it.

My cousins son broke one of her ribs in utero