(Closed) Calling all Bees for conception dating advice…

posted 8 years ago in Babies
Post # 3
3363 posts
Sugar bee
  • Wedding: September 2009

oh boy…I don’t think there is any way to tell except a paternity test. 

Post # 4
1220 posts
Bumble bee
  • Wedding: November 2009

She needs to go to her doctor.  They can do a paternity test but the doctor also needs to talk to her about her pregnancy being within that 2 year frame that she wasn’t supposed to be pregnant.  That’s more important to her health right now than who’s baby it is.

Post # 6
4354 posts
Honey bee
  • Wedding: June 2013

My guess would be guy #2 because of the unprotected aspect.

Post # 8
1030 posts
Bumble bee
  • Wedding: May 2011

Yikes. I don’t know what to tell you either except I hope she’s okay. Is her health at risk being pregnant so soon after the surgery? That’s probably a more important question right now that the father (unless she’s planning to terminate, in which case my personal opinion is he should know/have input)

I’m not sure if you can conceive on the 23rd day of your cycle (if she was expecting her period on the 28th and had sex with Guy 2 on the 23rd), that sounds awfully late.. but I guess you never know. She should just go to her doctor (or planned parenthood or a clinic), they can give you your date of conception based on where you are in the pregnancy, etc.. that should certainly help narrow it down.

Post # 9
1944 posts
Buzzing bee
  • Wedding: June 2009

Oh brother……oy

I agree IF her cycles are as regular as she says they are, it would be rare, but hell things happen, to get pregnant on the 23rd day of her cycle if she was due the 28th. But really, who knows when her last period was as well? She should definetly go to the doctor and get a date of possible conception from them. Not sure how early they can do a paternity test but I cannot see it happening right now.

Post # 11
264 posts
Helper bee
  • Wedding: September 2009

She definitely could have ovulated on the 23rd day of her cycle. It is unusual but not at all outside the realm of possibility. In fact, I think it’s likely because if she last had sex with Guy #1 on the 19th or 20th and that resulted in conception, she probably would have tested positive on the 31st. (Average implantation length being 7–10 days).


Post # 13
45 posts

I wouldn’t agree that she should likely have a positive test on the 31st if sex occurred on the 19th or 20th.  Sperm lives for an average of 1 to 2 days, and can live up to 5 days if conditions are optimal.  That means she could have had sex on the 20th and ovulated on the 22nd.  Let’s say it then took 10 days for implantation…. that would result in a negative pregnancy test on the 31st.  You also want to keep in mind that it can take several days after implantation, if not longer in some cases, for hCG to reach levels detectable by an at home pregnancy test.  

With the guys being so close together, it could be either.  I agree that an ultrasound may help pinpoint the date, but in the first trimester, an ultrasound has an error of about 3 days when it comes to dating (coincidentally, I just read that fact in my pregnancy book this afternoon).  So… it looks like that might not help either.  This is a really tough situation–good luck to your friend.

Post # 15
751 posts
Busy bee
  • Wedding: May 2010

I put the dates you gave us into an ovulation calendar and it has her ovulating on October 14th, which means it’s Guy #1.  Assuming she’s as regular as she says and knowing that the egg only lives for about 24 hours,  there is no way it could be Guy #2.   

Yes, implantation happens 7-10 days later, but many women don’t get a positive test until they actually miss their period (I didn’t get one 11 or 12 days after ovulation but I did on day 16). 

Only a paternity test will tell for sure, but my money is on Guy #1. 

Post # 16
91 posts
Worker bee

oh geeze how crazy. Timing definitely fits better with Guy #1 as some have mentioned. What a crappy situation to be in 🙁 I’m so sorry for your friend!

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