Abbreviation! Help!

Aujarae • Married younge to my love! Momma to Aubree☀️(6), Cadence 👼🏻, Karlee🌈(4), Kaison 👶🏻 (8 months). 3 years PO RNY Gastric Bypass.
I'd like to know what all the abbreviations mean that everyone is using on here! I'm so lost! BFM? BFP?