I'm as confused as you.
I wasn't, and may still not be, doing IVF. I started off just using Gonal-F to get my left ovary to do something, as my right tube is non-functional and that ovary is very dominant. The plan was simply to do timed intercourse. But as of yesterday (CD 10), I had ~15 follies over 10 mm and an additional 30 or so at about 10 mm (

), which is waaaaaaaaaaaaaaaaaaay too many to do timed intercourse or IUI.

The risk of multiples would be very high. So they started talking about converting this cycle to an IVF cycle.
But then my blood tests (for estrogen aka estradiol) came back with ambiguous results, so they're not sure what I'm doing. I have another scan and blood test tomorrow when I'll hopefully have results that are EITHER good for timed intercourse OR IVF. I'm scared of that middle ground where I'd have too many follies to try on my own, but not enough to make IVF worthwhile.
In the meantime I'm just kind of losing my mind.

I do know that I'm very lucky to have ovaries that respond like this--a lot of women are not so fortunate. I'm older, though, at almost 36, so I'm assuming a greater proportion of those are not of good quality.

There's got to be some reason I haven't had a bfp in a year, since egg production #s clearly aren't the problem.
Sorry to write an essay.