Childbirth/CONCEPTION!

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Expert: - 6/10/2009


Question
HELLO CATHERINE,

I HAD ASKED U THE EXACT SAME QUESTION AS THE LAST TIME BUT I JUST
DONT FEEL SATSIFIED. OKAY MY PERIOD I THINK I STARTED ON JAN 11-14...I
HAD SEX WITH #1 ON JAN 14 YES I KNOW I WAS STILL ON MY PERIOD AND
DIDNT KNOW IT CAUSE  I THOUGHT I STOPPED BUT AFTER HAVING
INTERCOURSE I BLED FOR ABOUT AN HOUR LONGER...THEN AFTER
CONTINOUSLY KEPT HAVING SEX WITH #2 BUT NOT ON THE SAME DAY. SO
YOU HAD TOLD ME THAT I CONCIEVED ON JAN 28 BUT TODAY I WENT TO
GET AN ULTRASOUND THEY SAID I AM EXACTLY 22 WEEKS TOMOROW WHICH
IS JUNE 10 I COUNTED BACK THE WEEEKS AND THE DATES CAME OUT TO BE
ON BETWEEN JAN 18-24...PLEASE HELP IN LETTING ME KNOW WHO THE
FATHER IS IM REALLY FREAKING OUT CAUSE I LET #2 KNOW THAT ITS HIS!

THANKS AUBREE!

Answer
Aubree,

My first answer still stands.  You cannot accurately determine a due date from an ultrasound after the first trimester.  At this stage, it can be off by more than a week in either direction.


Your due date should not have been changed unless it was more than 2 weeks different from your initial one, which it wasn't.


Even if this new estimate was correct, your most likely conception date would have been Jan 21st, which is still too far from the 14th for your old boyfriend to have been the father, as sperm only live for up to 5 days in the reproductive tract.  3 days is usually the average.



Best,
Catherine  

Childbirth

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Catherine Beier MS CBE

Expertise

I can provide evidence-based information and current research findings concerning childbirth and pregnancy. My specializations include natural childbirth, pregnancy and birth interventions, fetal positioning, labor induction, choosing a care provider, midwives, homebirth, unassisted birth, natural pain relief, medications in pregnancy and birth, informed consent, understanding the risks and benefits of childbirth choices, doulas, waterbirth, childbirth methods, childbirth education classes, cesarean section, and VBAC.

Experience

I have been a childbirth educator, mother, author, public speaker, researcher, and birth advocate for the past 9 years. I am also the author of Giving Birth Naturally, a site dedicated to natural childbirth and pregnancy information. I publish evidence-based articles on pregnancy, childbirth, newborn care, and post-partum care. I'm also a mother of three children, two daughters and one son all born naturally. To learn more about what normal birth looks like, view the natural childbirth video of my son being born at home unassisted.

Publications
My book, Birth Outside the Box, was published in 2007.

Education/Credentials
I hold a Master's degree in communication disorders with an emphasis in child development. I am also an independent childbirth educator.

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