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A 19-year-old member asked:

I recently received the depo-provera shot after having a cyst found on my ovaries. i did have unprotected sex a day after the shot . i missed my period the la?

2 doctor answers3 doctors weighed in
Dr. Paul Williams
Family Medicine 37 years experience
Depo shot: If you received the shot (150mcg) at the right time in your cycel - ie just as your period was starting - it should have protected you. That is the nice thing with the shot - its protective once its dosed. However, if you got the shot at any other time it might not work until your next cycle. The best thing to do is check a pregnancy test.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Danny Westmoreland
Family Medicine 38 years experience
Problem: I am a physician that does not like Depo-Provera shots for most women. I did early but found a problem. Like you, they were not sure if their control was still in effect at the end of the cycle do to missed periods. You are concerned about early instead of 3 months but this was a real problem and resulted in frequent pregnancy tests.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 18-year-old female asked:
I wasa month late on my Depo-Provera shot and had a 2 week period after i took my shot it stopped, i had unprotected sex 1 week after my shot could i be prego?
Dr. Jeff Livingston
Obstetrics and Gynecology 24 years experience
Not likely: Depo-provera is one of the most effective forms of birth control, as long as you get the shot every 3 months as directed. Irregular or absent periods ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 23-year-old male asked:
Had Depo-Provera shot was off for 12 days and had unprotected sex then got Depo-Provera shot again but no period, had period before the the first Depo-Provera
Dr. Peter Baumann
Specializes in Obstetrics and Gynecology
Grace period: Depotprovera should ideally be given every 12 weeks, but there is a grace period of 2 weeks, before the next shot has to be given to effectively preve... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 19-year-old female asked:
Watery clear discharge& it feel like my period coming but it turn a little bit white &i just miss my Depo-Provera shot& i had unprotected sex am im pregnant?
Dr. Raja Abusharr
Family Medicine 23 years experience
Get tested: The only way to determine if you are pregnant, even in the best of circumstances (timely depo, iud, tubal ligation, ocps, etc) is to have a pregnancy ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 23-year-old male asked:
First Depo-Provera shot i took i had my period when i was due for anothwr one had to wait 12 days and had unprotected sex got on Depo-Provera again and no period?
Dr. Michael Swor
Obstetrics and Gynecology 42 years experience
Normal: Depoprovera is highly effective for birth control. It's common to cause a change or a stopping of periods.
Created for people with ongoing healthcare needs but benefits everyone.
A 18-year-old female asked:
Would a blood pregnancy test be accurate if you waited three week after sex and you are on Depo-Provera provera (medroxyprogesterone) bc you no longer get a period nevr miss a shot?
Dr. Robert Kwok
Pediatrics 35 years experience
Yes: Three weeks after sex is long enough for a pregnancy test to show whether or not a woman got pregnant 3 weeks ago.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jul 11, 2021

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