Here it is...March 2, 6 week pregancy abortion with RU-486, result successful! Then on March 16th took PLAN B 42 hours after accidental ejaculation inside. March 19th started my pierod. Very heavy last 7 days. Breasts have become increasing sore and swollen. I sometimes have problems with breast pain before pierod, but is usually gone after a few days of starting menustration. What could be causing this? I know I could possibly be pregnant again, but could it be the large doses of hormones from the RU-486 or the PLAN -B??