Currently I am 11 days late. Around the time when my ovulation should have taken place, I got a UTI. That week I abstained from sex and was on antibiotics. The following week I got a yeast infection (probably caused by the antibiotics). The times I did have sex with my fiance this month, he wore a condom. I also started an exercise program this month if that is significant. I'm not doing anything hardcore, but I have been exercising everyday. I took a test 3 days ago and it was negative. Is it possible that my cycle was screwed up from my UTI? I haven't had any PMS/pregnancy symptoms at all. Every period I've ever had has been accompanied by sore breasts a week before and I haven't felt anything.