Trying Not To Test

Glow says I should've started my period yesterday. I have creamy CM which is kinda rare since I'm usually dry around my cycle. However, I always start on Wednesdays. I'm holding off, but it's killing me. I feel like as long as I wait to test there is still a chance. I'm pretty crampy and I've been a full on Witch lately. My patience has been paper thin. 
Last time I tested early, I had a chemical pregnancy. I just don't wanna do that again.