I was only the pill for 8 years (starting at age 20) before the hubby and I decided to get pregnant. My doctor said to be off of it for about 6 months (while using other forms of contraception) before trying to get pregnant. While I was waiting, I charted my period (look into the book Taking Charge of Your Fertility by Toni Weschler). On the 5th month, we went for it and got pregnant.

While charting, I found out that I started to ovulate instantly. In reading the book though, i found that some women takes up to a year before they start ovulating and some take shorter.

you may find this website useful

http://www.womhealth.org.au/healthjourney/pill_myths_misconceptions.htm