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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How Can The Exact Date Of Conception Be Determined?

Hi. My due date from my lmp is 2 days off of my ultrasound. It's 2 days later. Does that mean I ovulated later? My ovulation date is 14th or 15th. The ultrasound is dating on the 17th. On the 17th I took plan b after intercourse about an hour after. Was i already pregnant or did i get pregnant from the intercourse on the 17th?
Mon, 13 Aug 2018
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General & Family Physician 's  Response
Hello dear,welcome to Ask a doctor service.
I reviewed your query and here is my advice.
Plan B is highly effective so you must have been pregnant before.
The ultrasound is highly reliable in determining the pregnancy age.


Hope I have answered the question.
Let me know if I can assist you further.
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How Can The Exact Date Of Conception Be Determined?

Hello dear,welcome to Ask a doctor service. I reviewed your query and here is my advice. Plan B is highly effective so you must have been pregnant before. The ultrasound is highly reliable in determining the pregnancy age. Hope I have answered the question. Let me know if I can assist you further.