Haha Rach me too! I don't quite know why that's a 'haha' but anyhow - wouldn't change a thing!
Trini the others have given sound advice - i would say it probably is just your body getting used to not being on the pill - remember it can take a while for you to ovulate again and sometimes when you come off it you will skip for a while (i went off for a year while i wasn't in r/ship and went without a 'proper' period for five months).
Good luck