9Dpo Breast issues

Mariyah • First pregnancy second little miracle! 💝 We can't wait to meet our little peanut!🚼 ✨Baby dust to all!✨
I am currently 9Dpo and my boobs are killing me! I have actually noticed a significant size difference of my boobs. My breasts always swell before my period but not like this! They have never swelled so much that they are falling out of my bras in fact my bras don't even fit anymore. Does anyone have advice on what could be going on?