Abbreviations! Help 🙈

Raquel
Ok so I'm new to this and I've seen many abbreviations I understood a couple but if you know more I'd love to know what they mean so I can understand threads better 😊 thank you!!
DPO.  Days past ovulation?
BFP.   Big fat positive?
AF.   Aunt Fran?
Anyone know anymore I should probly know about....