Nuva ring issues

natasha
I was on the Nuva ring for about a month and a half  back in January/February, and since then my periods have been super regular.  I'm a little concerned because I have been on the pill before, and my periods have always come back after being off of it. But since February I have only had two periods. Before birth control  my periods were always regular and on time. Since then my period has been 40 days late 25 days late and currently 20 days late.  I know it takes time for your body to adjust back, but since it's taking so long I'm concerned.  I set up an appointment with my OB, but I'm a little impatient. Did anyone else have these issues? I'm getting married this November and my fiancé and I are wanting to conceive shortly after, which is a little hard when you can't keep track of your cycle. Did anyone else go through this? What did your doctor do/say?