Birth control side affects? Advice!

I just started my birth control about 2 weeks ago, & I feel like I am having a very bad reaction. I have never had any children but, my breast have been very very very sore worst they have ever felt I windo imagine this how how they feel after birth!! I can hardly walk without them hurting so bad I've been wearing sports bras & sometimes a 2nd one just for extra comfort. I also have been having cramps, they aren't as bad as my usual cramps which are usually pretty bad, but bad enough that I almost can't take it. I have been nauseous & have puked, I have also lost my sex drive & I am no longer attracted to my boyfriend. I cry about anything & everything & I feel like I'm going crazy! Any advice?