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A 31-year-old female asked:

My last period was april 10 my due date is 1 28 2015 my periods are not regular when did sex get me pregnant i am so confused?

1 doctor answer1 doctor weighed in
Dr. Gerard Honore
Fertility Medicine 30 years experience
May 5-May10: If the ultrasound were 100% accurate (Its definitely not) you would've conceived close to May 5-10. With irregular periods this seems most likely. If your ultrasound dating is from the 1st trimester this timing is close to certain, if it was a 2nd trimester ultrasound the guess might be farther off.
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Last updated Jul 29, 2014

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