i thought it had to be a minimum of 1cm????

Well I'm pretty upset at the moment. My frozen transfer has been cancelled for the month. I've just had my day 9 BT and my oestrogen is at 365 and my progesterone is at 11............i now have to go in for another BT and US tomorrow to make sure but it looks like i've already ovulated........soooooo early!!! That's another month I have to wait. I'm not actually upset, I'm bloody furious!!!!!!!!!!