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Thank you for the question - can you give me more details so that I can help?
Thank you and I am sorry about the delay.
1. If you were 6 0/7 wks pregnancy on 8/20
2. Your due date = 4/14/2016
3. You conceived on 7/23/2015 (+/- 3 days)
An ultrasound at this early point in pregnancy is extremely accurate. Even taking into account that sperm can live in the cervix for up to 72 hours AND the small error in ultrasound, I would say that the 'window' within which you got pregnant was about 7/18-7/28. Interourse on 8/8 could NOT have produced a pregnancy that was visible on ultrasound on 8/20. It just could NOT happen.
Does this answer your question?
Thank you for the followup - I am sorry about the delay.
That is correct, the heartbeat cannot be heard until you are 4 weeks from conception, or 6 weeks pregnant. If you had conceived on 8/8, this is only 2 weeks after conception.
Also, ANYTHING that you tell your doctor CANNOT be discussed with other persons. You should, however, make sure that when you discuss this with them that they keep any of this discussion out of the medical record. It is possible that anything documented in your record might carry over to the child's record, to which he would have access as the parent.
I hope that this answers your question - please take a moment to provide a POSITIVE rating.
Finally, you can ask followup questions within this question stream until we are done and you will not have additional charges.