12w&5d boy or girl nub?

dtucker9

The sonographer said that it was hard for her to tell because the nub isn't totally parallel with the spine, but it isn't perpendicular either. Any suggestions!?

mc0113

I think it was hard for her to tell anything here will just be guesses. Plus, at 12 weeks, both boys and girls look extremely similar. 

WillCMyInk

My suggestion is that you wait until at least week 16 to bother guessing. There are so many variables right now that it's entirely too easy too get it wrong. If you really want to know ASAP find a elective ultrasound place and make an appointment for week 16 (or whatever week they will allow).

dtucker9

Thank you ladies!!!!!

mommy5point0

If it's killing you, I bet they could tell with a 4D

ghostof5letters

TXUltraRunner

You have a 50% chance of guessing right

mom2case

It looks like a boy to me!  My son's "part" was at that same angle at 12w5d.  There's a woman on babycenter screename Turtle75.  She's the admin of a group called ultrasounds.  Anyway, she guesses on NT scans and has supposedly never been wrong.  I would link it but I don't think we're allowed to do links. 

Maebb

Here's a similar recent post from D14. Maybe you will get some insight here:

https://forums.thebump.com/discussion/12380585/first-post-boy-v-girl-guesses/p1

My opinion (and...science) - the error rate at guessing the sex at < 13 weeks is still about 50%. More here:

https://baby2see.com/gender/external_genitals.html

MLC1990

Haha, same thing happened to us today at 13w 2d. Baby apparently "sounds" like a girl (high HR in the 160s) but looks kinda like a boy :-P She couldn't give us a definitive either. 

mom2case

@MLC1990 The heartrate theory has been totally debunked.  My son's heartrate was always in the 170's.    

I think the accuracy of the guess at 11w is around 50%, 60-70% at 12w, and closer to 80% at 13w.  Not sure where I read that though.  My tech said she was 85% sure it was a boy at 12w5d and she was right. 

Stargirlb

intersex is my guess!

MLC1990

@mom2case‌ I was 13w 2d at this US. Lets hope for a boy because she also told me peanut had huge feet. Haha.

She just had a hard time visualizing because baby is laying breech with knees scrunched up.

Tapsalteerie

People get angry because they are asked to make a call that they could be completely wrong about because they are not trained in the area of making said guess. How hard is it to wait another 8 weeks for you to have a more definitive answer? Is all of the blue and pink crap going to be bought out by then?

I'm also pissed that people think of these scans solely as an attempt to find out the sex of their baby. Yes, that's a nice add on, but focus on what they are really intended for and that's to check for markers that could indicate health problems. Just be thankful if the baby is healthy. If you didn't get a chance to find out the sex, then go for an elective u/s where things are a lot less intense.

mellie86041

I'm just going to leave this here, courtesy of NIH: https://www.ncbi.nlm.nih.gov/pubmed/17851807

MNgirl326

Just wait until your a/s and ask the trained professional

Maebb

mellie86041 said:

I'm just going to leave this here, courtesy of NIH: https://www.ncbi.nlm.nih.gov/pubmed/17851807

It seems like these statistics are based on having a trained professional determine the sex via ultrasound. Plus the sample size is < 500. I'm not sure whether a study has been done on "post your u/s picture on a forum of untrained professionals, and have them predict the sex," but my guess is that percentage would be lower.

My personal feeling on the matter is that I'd rather leave it to the professionals, and I'd rather not post a picture of my unborn baby's partially formed genitalia for the internet to scrutinize. I do realize that everyone is different, and if that's fun for you, go for it.

WillCMyInk

mellie86041 said:

I'm just going to leave this here, courtesy of NIH: https://www.ncbi.nlm.nih.gov/pubmed/17851807

Is every sonographer at every office in the world a "certified sonographer of first trimester screenings by the Fetal Medicine Foundation (FMF)"? Are they all using that particular ultrasound machine? Chances of that are very low.

Again, everything is so subjective to the circumstances under which it took place that you are not ALWAYS going to get those kind of results. Not to mention, assuming approximately 4 million births in the US every year (not even counting those that miscarry, etc.) that sample size only accounts for .01% of births in the US every year. So in .01% of the cases where you're told you're having a boy/girl your accuracy will be up to 98%... 

mellie86041

By the way, my comment earlier was just more of a devil's advocate kind of thing... You can always google to find things that say what you want them to. I'm willing to bet that most of us are not getting ultrasounds done by the same level of tech as those in the study. So I would definitely take any gender guesses with a grain of salt until LO is out!

And by the way, it took scrolling through a whole lot of forum posts on google to find that study!