Ok.... I've cheated and caved and have just POAS!!
It's positive! A blinding positive!
I had my 1500 pregnyl booster Tuesday so it's been 4 full days since that. Its a super clear positive and I am crossing all fingers and toes that it's not that pregnyl. I think it would be light if it was that leaving because it doesn't normally hang around too long. And this is a really clear positive. I've been reading and some people say it leaves 1000 units per day, and some say 3-5 days.
I have to do another pregnyl injection tomorrow so thought I would test today just...because. I'll test tomorrow before the injection too! Oh pleeeeease I hope this is true.