Were your top quality blasts (5aa/5ab/5ba) born male or female?

[SoloIVFer]

The embryologist who selected my 5aa blast to transfer said because it was graded as 5aa, it was likely to be a male baby! Apparently 70%+ of 5aa/5ab/5ba blasts are male because the male embryos grow more quickly/are therefore often the best of the bunch at selection. Not that I care, but I'm just intrigued, did anyone have a 5aa/5ab/5ba blast transferred and if so, was the baby born male or female?

Two children from 5aa blasts. One boy, one girl. The boy was hatching, the girl wasn’t.

(Separate pregnancies, not twins)

Interesting, thanks! Anyone else??

Ours is a boy, but our embryologist said 4 was better than 5 as they do better if they don't hatch before implantation. So our boy was a 4aa.

My 5AA was a boy.

Our clinic just Grades A/B/C and our A is a boy

Ooh interesting. I never got a grade like that but we had 4 embryos frozen from 21 egg// 19 fertilised. I always guessed/ assumed they'd be boys, based on the fact that boy embryos grow faster so the 4 they froze at day 5 would have been the fasted of the 19. (obviously very loose science!)

However, embryo 1=not implanted, embryo 2=boy baby, embryo 3=not emplanted, embryo 4= boy baby.

So yeah, it was true for me!

Boy for me!

Only one girl from a 5aa so far!! Anyone else?

I know you are interested in the excellent grades OP but I had 2 5bb embryos transferred - first was DD and she was really mid hatch when she went in (lovely peanut shape) and the second was DS who had only just, just started to hatch (he was a 4 until the moment before the transfer). My DD always measured ahead and my DS is always measuring slightly behind.

Boy here, 5AA

My single embryo turned into 3 boys!
Holding two in my arms this morning

@knittedwithme identical triplets ? That sounds amazing and terrifying at the same time !

Btw OP, I had IUI and not IVF but my friend's sluggish, low quality embryo turned into a beautiful little boy.

I read an article suggesting that IVF actually favours girls, the numbers I remember were 53%-56% of girls being born from IVF (the exact proportion depended on when the embryo was put back in).

Another boy here.

He is absolutely non stop, we always wonder whether that has anything to do with him being our front runner embryo.

@Marty13 sadly the third baby did not progress very far, though without sounding cruel it made the pregnancy safer for the remaining two. Identical twins. Full of beans! XxX

That's so interesting I did not know this!

My 5AA was a boy 💙

Mine were only early blastocysts on day 5 so both lagging: b/g twins. 5 years on I still find all of it fascinating!

My 2 best embryos are now boys, ages 2 and 7. And both are constantly running, jumping and climbing!

So interesting. Are we yet to find more than one 5aa girl then? Seems the stats are correct!

I've read that most if the lesser quality ones are girls. But if you have a 5aa transfered, it's very likely to be a boy! (70%)+

To the lady whi fell pregnant with identical triplets, wow! Sorry to hear one was lost. I think as a solo mum, twins feels quite a fear for me!!

5AA girl here! Hatching blast.

@SoloIVFer Thankyou. I hear you. Twins is not easy and solo would be a challenge indeed!

Embryo splits are rare but are most likely to happen with frozen embryos apparently...

Same here - busy boy 👍🏼

@RedPandaFluff woo!! This is apparently rare! Mine was 5aa hatching too and I'm prepared for a boy but you never know!

@knittedwithme is that right!?!. How fascinating. I wonder why that is! I have loads of twins in my family. 2 sets are identical, one on mum's side (my great uncles) and one on dad's side (my cousins).

My single 5aa embryo split into identical twin girls. Currently 29 weeks pregnant with them