 [ Symptoms ] when switching birth control how long to wait to have unprotected intercourse i switched my birth control pill 2 weeks ago i was on oratho tri lo for almost 4 years and 2 weeks ago switched to junel fe24 how long do condoms have to be used during this switch time [ Disease ] if you are a teenager who is pregnant here is how to ensure a healthy teen pregnancy get early prenatal care call your doctor for your first prenatal visit as soon as you think you might be pregnant if you can not afford to see a doctor ask your school nurse or counselor to help you find a low cost clinic and other resources for example they can help you find state medicaid or wic women infants and children programs stay away from alcohol drugs and cigarettes these harm a growing fetus even more than they harm a growing teenager if you are not able to quit by yourself ask for help from someone you trust take a prenatal vitamin with at least 0 4 mg of folic acid every day to help prevent birth defects ideally this should start before you get pregnant ask for emotional support being a mother brings untold emotional and practical challenges    especially for teens still in school reach out to others    your friends family the baby is father    for emotional and practical support for teenagers who are healthy and strong chances are good of delivering a healthy strong baby    especially with early prenatal care and a healthy lifestyle during pregnancy