Okay so for the past week and a half or 2 weeks my breasts have been really sore and I noticed that my bra hasn't been fitting right either and have had to switch from a D size to a DD. I've also been moody and had some nausea and low back pain.We use the pull out method instead of relying on the pill (since my daughter was concieved while i was on the pill) and we've been doing that for 6 years now with no pregnancy.  My period is due around the 14th or 15th so it's not far off so I don't know if it's PMS or if I could be pregnant.  The breast pain and swelling has never happened with my period before.