No Period

I am kind of alarmed because I still don't have my monthly period until now. It will be more than a year already. As a matter of fact be 2 years in August that I haven't have my menstrual cycle. I already forgot how it feel like having one :-) Anyways, I am still breastfeeding until now that is why. My OB told me that I will have it if my baby stops BF already. I just wanna ask the mommies who have gone through this. Should I be worried when the time it comes back? What are the possible preparations or the things that I should when I will have it. Hope I get infos from ya' all:-)