Stopping Birth Control. How Long for Period?

Girl Mom. 🎀 • Mama bear of two!
How long did it take for your period to return back to normal after you stopped taking birth control? I stopped 4 months ago and now my periods are super irregular and are unpredictable. Before starting the pill I always had regular periods and started on the 9th of every month. Now I'm lucky to start the week of the 9th. They literally start whenever, and according to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> I am 4 days late, and my other app says I'm 9 days late. I do get my periods, just whenever. I'm a little moody and my forehead broke out, so I have symptoms but it never starts. I am TTC and this is making it hard to know when I'm ovulating! Anyone else experience this?