I went on because about 6 years ago for irregular periods decides to get off it about 2 years ago to start trying to have children with my husband. Since I haven't gotten off I haven't had a period but one time. Went to the doctor they say it's normal and that I need to get back on because but I don't want to cause we want a baby. What should I take to get them back?

Got on and off what? Different birth controls have different effects.