Birth control

So I recently started my new birth control called isbloom and I’m on day 3 on my pill and my period and my period just stopped no blood or anything it completely disappeared I haven’t been sexual activity since November .so ik I’m not pregnant is this just side effects from the birth control and will my period come back unexpectedly like new week or something??? I need answer lol . I find it so weird that it just stopped out of nowhere .