Seph, I have everything crossed for you hun I pray this is your turn I had AF type cramping around the same time as you. I had my 5 day embie transfered on a Saturday, and tested the following Saturday and got a very faint second line (you almost couldn't see it). I would test on Wednesday or even Thursday if that's what you want to do, not earlier. Praying for you sweets, you deserve it so much xx
There is still hope!!