 [ 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 ] hi 7 days so you could have been having sex without a condom 7 days a go but best to be safe than sorry remember safe sex is the best sex good luck