I got my period October 1st. My period usually lasts 3-5 days. I'm very regular. Around the 4th day my boyfriend and I started having sex every day in hopes to conceive. A few days after my ovulation day, I felt very nauseous the whole day. And since then I feel nauseous almost every day for a little bit during the day. Also my breasts have been very tender/sore. And yesterday I noticed I had some pain under my right rib cage by my rib cage. My boyfriend also says my uterus area feels puffy. I'm supposed to get my period Saturday. Could I be pregnant? Should I try taking a pregnancy test? Any help or advice would be great!