I went off the pill in may '03 and had regular cycles until november '03. Then my cycles went from 32 days long to 47 to 54 and then I was pregnant in march '04.
The pill does some whacky things to our bodies and each person is different. I blame my situation on lo/ovral-28.
I never thought I would become pregnant or be able to carry a baby, and so far, so good!! I just hope my body continues to nurture my little one tucked inside.