Post-partum

I used the Nuvaring for years then I decided to give my body and break from birth control and ended up getting pregnant almost a year later. I was on non-hormonal bc due to breastfeeding. I’ve been back on the Nuvaring for about four months and have had no complications. Besides my period is lighter now. One day is heavy then the next three days are light. Has anyone experienced something like this?

I firmly don’t believe I’m pregnant but I still freak over my period due to not having it for almost two years.