I Am Two Weeks Into My Second Pack Of Lo

I am two weeks into my second pack of lo loestrin fe. The first pack I had unprotected sex about the 4th day in. Then I got my period around the 3rd week of my active pills. It was extremely heavy and looked like large clots. Since then my breasts have grown tremendously and are very sore. I am cramping and a lot of times have lower back and side pain. I had a little but thick, dark bleeding for a day about a week ago. My fiancé and I waited until about the fourth week of the first pack to have anymore unprotected sex. Last week I had a negative hpt. Are these just normal symptoms