I am 25 years old. I stopped taking birth control at the end of October 2008. I was on it for a year. I have been TTC since. I started ovulating in January and have ovulated on the 10th of every month except this month. My cervical mucus between the 5th and the 9th was sticky but for the for the past 6 days has been between watery and creamy. My last period was on March 28, 2009. On April 12, 2009 my breasts became very sore and have not stopped being sore, however they have not gotten bigger. I usually have larger/sore breasts 7 days before my period starts, so I don't understand why they are sore this soon. My periods are regular, I have had it on the 28th for the past 4 months and it lasts 5 days. I've always been able to know when I ovulate and I didn't this month and I would like to know why?