I had a mc at 5 half weeks on the 23rd Feb (my af should have been due the week before on the 16th) My hcg levels dropped pretty quick and on the sunday 27th were at 2.5 as confirmed by a blood test! I have treid using opks this month so I can see when I am due to ov never really used them before! Anyway was getting a very feint line all last week then on Sunday had a bit of a darker line no where near as dark as the control line though and I would still class it as feint, anyway took another opk last night and one this morning and the line is now even lighter hard to see at all!! I have been taking about 4 tests a day surely I cant have missed my surge can i?! And if the feint line was my surge should it have been darker?! Argh!!!! Also been checking my cm and it went wet feeling yesterday as previously it had been quite creamy still feels wet today but there is not loads of it!! Sorry to rant but feel fed up cos if that was my surge yesterday afternnon then I have missed it cos wont be able to dtd till tonight!!!!!!!!