So confused

I just started using Glow and my husband and I just started using ovulation tests and taking my basal temp. I'm reading all these posts and there are so many abbreviations that I'm completely lost and feel as if I'm not doing something right. We're doing this on our own for now since our insurance doesn't cover any fertility costs. PLEASE HELP! Can anyone give me a little info on what all this means? I'd greatly appreciate it. Feeling very overwhelmed.