Sorry all, been a bit remiss at keeping on top of this thread recently (actually been forced to do quite a lot of work, so can't reply as much during office hours as i normally would) 
Welcome rainbow, but sorry you have need to be here. Hopefully coventry will be a positive step forward for you. I would call them at peak, which is equivalent to just the normal positive on the standard opks. Good luck!
spam, fingers crossed for you x
pop, sorry you're struggling through those awful first few weeks, which truly feel like wading through treacle. They are horrendous. I also had disappearing symptoms shortly before my 6wk scan after nausea earlier on. I was completely convinced the baby was gone, came on here posting that i was miscarrying again and making plans for how i would deal with it. Then felt like a right numpty (albeit a very relieved one) when i was proven completely incorrect upon seeing the hb.
What you are feeling is totally normal and unfortunately I don't think we can avoid it. Everything in our past experience of pregnancy had been deleted and replaced with this worst case scenario version where every scan and doppler check ends in bad news.
But. Lots of things are different for you this time with the medication (and new egg, new sperm etc), and so this doesn't have to be the worst case scenario. It can be the best case scenario, but what's more difficult to change with medication is your thoughts and fears, so those you just have to manage as they come along and club you from behind.
I think an early scan is a very good idea. Hopefully they will see the hb and you'll be over that first hurdle (although try not to worry if it's not there, as it could be too early to see it). Big hugs from me. Keeping fingers and toes crossed for you xx