If you’re noticing it, it’s not only possible, but probable.
This — like your bigger feet — is caused by the effects of the hormone relaxin. Relaxin’s job is to help loosen your ligaments (bone-to-bone connectors) so your rib cage can expand as your baby grows, and your hips can stretch as needed to birth your baby.
Late in pregnancy, you may have noticed that your baby was taking up valuable real estate under your ribs, thereby making the rib bones spread. Your chest will probably be pretty sore as it happens — not to mention baby’s kicks in that region can be quite painful. (Sometimes you will have a sore spot for years. No joke.)
And it’s not only the little one pushing the rib cage out: …
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