Hi Saph

I think you could do an HPT on the Monday, but I'd be pretty cautious with the result to protect yourself.

On the cycles that haven't worked for me I was still getting faint but clear lines on HPTs on BT day, so the pregnyl can definitely linger in your system.

I would think that if you get a really dark, strong line with FMU on Monday then you're in with a really good chance.

I guess your other option is to test each day and monitor whether the line gets lighter or darker, but it can be really hard to see those two lines - even if you know it's pregnyl it still does something to your head!

I would definitely do an HPT on Tuesday morning so you get some advanced warning of the result.

Good luck!!!

ETA - didn't read what you said about testing on Mon night - if you keep your liquid intake down for a few hours to get strong wee in the evening, that also might be a good idea and give the pregnyl more time to get out of your system.

xxxx