Pregnant or not?

I wasnt on my period for 5 months and now I have been on my period for 2 weeks going on 2

Should get tested. It's pretty wierd that you didn't have it for so long and then you did. Just get tested and find out for sure. Just go to your local drug store, like CVS, or whatever.

im just not too sure because I dont remember having sex

You haven't had you period in 5 months and your just starting to wonder now? Wow.
Go see your doctor.

well I go months without my period so it doesnt necassarily mean that you are pregnant not atleast you have been trying to get that way but you could have an ovary build up and the next time you have your period you could have a very heavy one you could get on birth control...or get on provera and it will help you start your period I dont take it every month (provera)but I have takin it before...I am suppose to start my birth control some point in time but birth control helps you start your period it will not let it get to heavy and it will ease cramps also but I hope things get easier if you have anymore questions like how provera works then you can ask me I know all about it lol so anyways my name is caresha ttyl

You might have been pregnant, and you had a miscarriage. Go see your doctor.

hope I helped, xoxo