I'm 19 and my doctor just switch me to tri spintec. I been on bc pills before bt only for my irregular periods. I've been takinq them 3 weeks now and my period came down the 2nd week and hasn't left yet. I'm havinq horrible mood swinqs, I'm happy one minute ,cryinq the next, then depressed ur mad. My breast hurt like hell continuously and I went up a size already. Other than that everything else is normal. But how much longer is my period going to stay and is it because of the pills?