I have been on birth control for a few years now but just recently changed birth controls. This is the first month on my new birth control and have not missed a single pill yet. About 2 weeks before my period was to start I had very sore breasts. About a week later, while my breasts are not ad sore, I have began spotting. I haven't ever had spotting before so I am not sure if it is due to changing birth controls or being pregnant. I have also had a little bit of cramping, been a little emotional and had frequent urination. Any advice would be great!