The shorthand i'm using is the standard stuff used in online discussions of trying to conceive (yes, thats ttc):
bd= having sex (dont ask me what it stands for, I dunno)
lmp=last menstrual period - some people count from dpo instead which is "days past ovulation"
o'd = ovulated (not sure what you thought I said but it sounds like it may have been more fun that ovulating)
implanting means when the egg implants in the uterine wall. That happens about 7-10 days after the egg is fertilized. Ivf (in vitro fertilization) and if you are bd-ing to get pregnant, you wouldn't need ivf...

(hows that for a test run of the lingo???)
hope this helps when you are reading posts out there on the net....