Hey Miss July,
Make sure you go to hospital won't you as you could end up with an infection or anything, not knowing how far along you were it could be dangerous, make sure you get that new GP and some proper care and advice too as the one you have at the moment hasn't been doing his job properly.
It's absolutely crazy that you haven't been helped with your long cycles and haven't had your bloods done, you need to get the correct help and that would take the pressure off your TTC journey.
If I were you I wouldn't even bother with the OPKs again as it is too hard to predict when you OV.
I have spoken to my friend's sister who is a GP and she told me-
In most cases a 60 day plus cycle is anovulatary- no OV, you can sometimes OV when you have a 60 day cycle but it is not likely you will OV every cycle, sometimes when you do OV late in the cycle the egg quality can be affected and M/C can occur, that could be what
happened to you.
If you have treatment for your long cycles you will OV earlier and your cycles will be shorter, you will be less stressed, and you will have the help and support you deserve from your doctors, when you get Clomid (See my post in LTTTC for more info) you get ultrasound checks on CD 10 to make sure it's working for you and then you get your womb lining checked around the time of implantation. Clomid not only makes you OV earlier giving you a shorter cycle it boosts all the different hormones in your cycle to help you become pregnant.
Hope you are ok,
Maybe.
xx