Help a blonde girl out

Shelbs

Husband and I have been TTC to conceive for the past 8months. Only new to glow and decided to track ovulation, etc. Can someone please please please pop all the abbreviations in the comments sections. I’m reading all of these posts and I have not a clue what all of these letter means 🤦🏼‍♀️🤦🏼‍♀️ thanks in advance!