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Started Yaz One Week Before Period

I am 43 years old and have never had a child.  I had unprotected sex on a Saturday and took Plan B on Monday.  When I went for my gyno yearly on Tuesday I asked for birth control pills.  She put me on Yaz.  She said that I had some blood in my urine and was my period close, I told her yes, it was supposed to be in a few days.  Well she said that since I was already spotting some to go ahead and take the Yaz that night.  I think now that the bleeding was from the Plan B and realized my period wasn't supposed to start until the following week.  But I took the Yaz that night and called my dr. and told them I never got my period.  She said to take a pregnancy test, which I did and it came back negative.  So I still have not gotten my period.  Did I miss it up by taking the Yaz a week before my period?  Could the Plan B also be affecting it?  Any chance I could be pregnant and the test was wrong?  Thanks for your help!
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Avatar universal
Thank you very much for your help!  I am still taking the Yaz and just going to see if I get my next period as scheduled.  I do plan to take another pregnancy test next week to make sure.  
Helpful - 0
603463 tn?1220626855
MEDICAL PROFESSIONAL
Hi!
Until I started writing this forum, I never thought about how many messed up cycles Plan B is going to cause!  Hey better than NOT taking Plan B!

My advice:  Keep taking your Yaz as scheduled.  We usually like to start the pills with a cycle for two reasons:  one we know you're not pregnant, two,it is more likely to coincide with your normal cycle and cause less break through bleeding in the beginning.

I trust your pregnancy test--but for peace of mind you may want to take another one in a week.  Even if you are pregnant oral contraceptives will not cause birth defects, though if your second test is positive, you should definitely stop them then!

Stopping them now is really going to throw your cycle off, and put you at risk for pregnancy again, so Stick with them!

Good luck!

Dr B
Helpful - 0

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