I know this sounds like a stupid question, but I am new to birth control. I recently started taking birth control on September 6th & the last time I had protected sex was August 29 (before pill) I ended up having my period so I felt like all was fine so I began the pill but I am now having nausea, breast tenderness and headaches (occasionally) along with dizziness. Are these just symptoms of the pill? I'm currently taking Amethia.