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Pregnancy Confirmation & Father Identification: Understanding Conception Timeline


Question
HEY THANK YOU FOR YOUR ANSWER TO BY QUESTION BUT I ANOTHER ONE LIKE I STATED EARLY MY LMP WAS APRIL 8 IT LAST 5 DAYS IT A NOMRAL 28-30 EVERY MONTH.I HAD SEX ON APRIL 12 WHILE MY PERIOD WAS STILL ON IT WENT OFF 13 THAT WAS WITH PARTNER 1.
THEN ON APRIL 18,22,24 I HAD SEX WITH PARTNER 2 I HAD 3 U/S ON MAY 18 AT 5WEEKS /5 DAYS AND AT 7WEEKS/6DAY AND AT 9WEEKS /5 DAYS ALL LINE UP WITH MY LAST LMP. THE DOCTOR SAID I CONCEIVED AROUND APRIL 22 AND THAT MAKES PARTNER 2 THE FATHER. THE ONLY THING I AM SCARE ABOUT IS THAT I HEAR SPERM CAN LIVE 7DAYS.ANYWAY I COULD HAVE GOT PREGNANT BY PARTNER 1 ON THE 12 ENCONTER. AND WOULD THE u/s pick it up
GOT PREGNANT BEFORE APRIL 22. I AM SCARE BECAUSE I AM BACK WITH PARTNER 2 AND HAPPY. IS THERE ANYWAY I COULD BE PREGNANT BY PARTNER 1 .AND IF THE BABY WAS BIGGER WOULD THE U/S PICK IT UP IF I WAS A WEEK FARTHER ALONE.
THANKS

Answer
As I said in the previous answer, if you had conceived on April 11, it would have showed up in the ultrasounds.  An ultrasound at 6 weeks and at 10 weeks would look very very different than if you were really only 4-5 weeks and 8-9 weeks.  They are looking for body systems developing, and they grow at certain rates, which makes 1st trimester ultrasounds much more accurate for dating a pregnancy than later ultrasounds.


Dorothy H, LCCE