I used gestone on my 2nd cycle.
The answer to your first question is yes. It was a BFN but I didn't start bleeding until a few days after I stopped the gestone injections.
The answer to your 2nd question is also yes (
). I'd heard some awful stories about how painful gestone was to inject & how big the needles were. The needles are pretty huge but the actual injection itself didn't hurt as much as I thought. Don't get me wrong, they're not pleasant but assuming you inject in the right place (upper, outer quadrant if I remember correctly) it shouldn't hurt too much.
To be honest, I can't really remember how much gestone was in comparision to cyclogest which I'd used on my first cycle, but I don't remember it being overly expensive.
Hope I've helped (ish)
Good luck with this forthcoming cycle hunni. I'm keeping everything crossed for you.