Medical Questions > Pregnancy Forum > Pregnancy Calendar Conception : When did I Conceive ? Forum

Help - when is my conception date? Who's the daddy?

Hello - I do not have regular periods, in fact I did not have one for about a year and a half before conception, it's a hereditary thing (but we still ovulate.) I'm 20 and was not planning on getting pregnant, so I was not tracking my ovulation.
In Oct. I had two partners the week I conceived. The first I had sex with through Oct 20, and started having sex with another man starting Oct 22nd. I had an ultrasound Dec. 28, and it said I was 10 weeks, 1 day (GA.) How accurate is the ultrasound? I had implantation bleeding on Nov 5 or 6. My due date is July 24 (42 weeks.) Please help me determine who the father is. Note: the first guy was abusing Oxy, and I've read that it kills sperm. Is there any way the 2nd guy is the daddy?
Did you find this post helpful?
|

replied March 25th, 2012
Really wish a Dr would answer this one for me...
|
Did you find this post helpful?

replied March 29th, 2012
Experienced User
Whoever you were having sex with around the conception dates listed. It is very hard to pin point to exact because both men were very close w/o a period in between and your periods are not in a regular/semi regular pattern.
First Day of Last Menstrual Period: October 18, 2011
Probable Date of Ovulation: November 1, 2011
Possible Dates of Conception: October 28 to November 5, 2011
Due Date: July 24, 2012 (40 weeks)
|
Did you find this post helpful?

replied March 29th, 2012
Thank you for your response, this is very different than the dates the Dr gave me - although I wish yours were true.

According to ultrasound -
Cnceived on Oct 18th
2 weeks before would have been my LMP (Oct 4,)
Due date is July 10 (they won't let me go later than 7/24.)
Dr thinks (from ultrasound) that I conceived from sex between Oct 14-20, which would put the 2nd guy out of running. I wish this were not true, the difference of a few days between these two men makes all the difference in mine and my babies future.
|
Did you find this post helpful?

replied March 29th, 2012
Maybe from my original message I gave some wrong info?
The ultrasound said i was 10 weeks, 1 day (but didn't have the 2 weeks before conception added.)
|
Did you find this post helpful?

replied March 29th, 2012
Anyone have an experience where the ultrasound (at 10 weeks0 was off according to when you delivered? I've read they can be up to 7-10 days off either way, but vaginal scans are more accurate, which i had.
|
Did you find this post helpful?

replied April 4th, 2012
Experienced User
usually early ultrasounds done between 6&10 weeks are the most accurate. when ultrasounds are done later on in pregnancy the dates can be off. all ultrasounds can be off about a week or so but that all depends when the ultrasound is done. and if the baby is a little a head or behind on growth. you can also deliver early or late. i was due july 27 2010 and had her july 20 2010 and my dates were always right on. thats why its always good to know when your last actual period was. getting a due date JUST off of an ultrasound probably isnt as accurate as a due date based off of last period. also, my second current pregnancy has always matched up to my last period, sometimes just one day off.
|
Did you find this post helpful?