Cilest contraceptive pill

I've been on my new pill Cilest now for just over 2 weeks I have previously taken 2 different pills in the past, one being mircogynon. I have been experiencing some strange things on Cliest but I'm not sure if it's the side effects? But I'm scared it's a pregnancy thing!!! Ive been pregnant in the past and I really hope it hasn't happened again!! I've been having a thrush like rash and it's quite itchy at times as well as having very sore boobs for a few days now. Could these be side effects from increased estrogen??? Please HELP!! I am waiting for my next break on my pill to find out for sure! If my period doesn't come I'm expecting the worst! Anyone else had this problem???