TTC after being on Nuva Ring for 7 yrs

I am currently 29 and been TTC for 6 months. I went off my birth control, the "Nuva Ring" 6 months ago and haven't had a regular period since. I used to have a pretty moderate flow for 4-5 days. Now I spot a lot and eventually get more of a "period flow" towards the end of the week. Am I going through some kind of hormonal withdrawl? Has anyone else had this happen after being in BC for a long time? Please help! I'm worried I won't be able to conceive until I get my periods back on track. And advice is much appreciated!