Where's my period? HELP

Au

Hello ladies! I just wanted to ask any of you that have taken hormonal bc pills before if your first month or so you had a period/ how light was it? This was my first month on lo loestrin fe and my period is literally nothing. There's a SLIGHT tan color in my undies but other than that...nothing. Has this happened to any of you? I am sexually active but I haven't missed a pill.