Three weeks ago I had my bar taken out and switched to the birth control pills Lyza. I still have not started my period is that normal? Me and my boyfriend had unprotected sex the day before I had my bar taken out and then one after I started the pills. Before I started the pills I didn't have a period for almost a year and a half due to my implant in my arm. Before my bar I had to get the birth control shots and when j switched from the shots to the bar I got my period right away so I figured now swiching to the pills from the bar I'd have my period also right away