New to glow help with abbreviations please

Hay ladies 
​I was on the pill from the age of 15 I'm now 27 and trying for a baby
​Came off the pill in April have had periods,  cycles are a crazy 38-41days. It's crazy cause like last month I missed a period had 3 tests and all negative then started my period yesterday (gutted) 
​The doc said it's natural to take up to a year after coming off the pill but in like seriously??? It's like everyone around me is falling pregnant but me ?
​Any whoo so that's me 
​I'm just wondering if I could get some help understanding all the abriviations I see on here..
​It's hard to understand the posts when there's so much fpt db hpt stuff lol 
​Thanks girls 
​Xoxoxo