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Second trimester: As your baby continues to grow, you may experience some rib pain and shortness of breath, which crops up as your growing uterus pushes up against your diaphragm and compresses your lungs.Those who have morning sickness may even lose a few pounds. What’s more, many women don’t gain very much weight in the first few months of their pregnancies. By the end of the first trimester, it’s likely that your baby weighs only an ounce or less. First trimester: Because rib pain is often caused by an ever-expanding body - particularly a uterus that keeps stretching to accommodate a growing baby - it doesn’t tend to occur in the first trimester.Here’s how rib pregnancy can change as the months progress: Some women, however, will feel rib pain during the later stages of their pregnancy when their body starts to stretch in earnest. In the early stages of pregnancy, you may not experience any rib pain at all. How does rib pain change during pregnancy? Your little contortionist may have sunk a foot into your ribs, and (surprise!) she packs a powerful punch. As your uterus continues to expand - and your breasts keep getting bigger - your rib cage may be, quite literally, under some pressure.
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The cartilage attached to your ribs can loosen and expand during pregnancy, causing inflammation (read: pain) in the area. This is welcome news to your lungs (which are already short on space) and uterus (which won’t stop growing), but not to your achy ribs and side. The same pregnancy hormones that are responsible for loosening your joints - especially that aptly named hormone, relaxin - can sometimes cause the ribs to expand. There are a few possible causes of rib pain during pregnancy, including: Rib pain tends to crop up in the second and third trimesters, especially near the end of your pregnancy, as your belly - and everything else - stretches to accommodate your growing baby.
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