2 doctors weighed in:
I started new birth control, how long does it take to be effective?
2 doctors weighed in

Dr. (Liz)Phuong Tran
Family Medicine
In brief: Next cycle/depend
Once you start on bcp for sure after your first month, it is effective.
I always tell my pt to use extra protection with foam and condom the first month when you start bcp.However, if you are already on the pills and your doctor change to a different one, then you do not need extra protection.As long as you take regularly and not skipping anyday.

In brief: Next cycle/depend
Once you start on bcp for sure after your first month, it is effective.
I always tell my pt to use extra protection with foam and condom the first month when you start bcp.However, if you are already on the pills and your doctor change to a different one, then you do not need extra protection.As long as you take regularly and not skipping anyday.
Dr. (Liz)Phuong Tran
Dr. (Liz)Phuong Tran
Thank
Dr. Carin Van Gelder
Emergency Medicine
In brief: Depends
Depends on what type of birth control.
Read the package insert (if you threw it away, look up the brand name and "package insert"). Please consider using barrier contraception too - often stds do not cause any symptoms at all, at least initially. Your partner may not know if they have an infection. Be safe.

In brief: Depends
Depends on what type of birth control.
Read the package insert (if you threw it away, look up the brand name and "package insert"). Please consider using barrier contraception too - often stds do not cause any symptoms at all, at least initially. Your partner may not know if they have an infection. Be safe.
Dr. Carin Van Gelder
Dr. Carin Van Gelder
Thank
Get help from a real doctor now
Dr. Dennis Higginbotham
Board Certified, Obstetrics & Gynecology
26 years in practice
49M people helped
Continue
108,000 doctors available
Read more answers from doctors