15 Surprising Ways Pregnancy Transforms Your Body --- and Your Mind

2. Immune System: The Ultimate Peacekeeper

Here's a mind-blowing fact: your baby is technically a "foreign object" to your body, thanks to its unique DNA. Normally, your immune system would attack anything unfamiliar. But during pregnancy, it flips a switch and creates a protective environment where the baby can grow safely. It's like your body negotiates a peace treaty to ensure everyone coexists happily.