... my birth control. I am on the 21 day pills then 7 sugar pills. After my period ended and I had started my second pack, I had sex for the first time with a condom. Then later on I had sex 2 more times without a condom. He never came inside of me and I take my pills are the exact same time every single day. I have been on my sugar pills now for 4 days and I haven't gotten my period but my breasts are very sore. I start college on Friday, could the stress of that be putting my period off? I also stressed a little because I thought I was pregnant but I'm 99% sure I'm not just looking to hear from some experts. Thank you so much!