My perid is 8 days late am I pregnant. My brest is sore and back pain. I had sex before 30 days.but my boyfriend use condom. What's the problem I'm in tension .my vegina inner side is swallon why I don't know give me answer thank you so much.

It's possible. Take a home pregnancy test with your first urine of the day. Even though your boyfriend used a condom there is still a chance you could be pregnant. There ALWAYS is when you engage in intercourse... always.

As for the swelling... it could be a number of things from a pregnancy symptom to a yeast infection. It would be best to call your obgyn or your primary doctor at least.