My period started on 24th of dec2012 I had a 28 day cycle I had sex with my partner right thought my period my ovulation day was jan 3rd I had sex the night before. It had been 2 weeks since and I have been suffering very tender breast worst then I would get if due for my period havin abdominal cramps back pain nausea and a lot of white vaginal discharge I took a test it was Negitive my period is irregular so I'm not quiet sure when my period is due What are my chances of being pregnant