How many blasts did you get in IVF?

Question

We got 19 eggs and 11 of them fertilized. I’m nervous about the final results; trying to see how many turn to healthy blastocycts. Please share with me how many blasts or normal PGT embryos did it take for you to conceive one baby? I cannot afford to do this all again. #IVFquestions

NRLH8341 · Answer

We got 7 normal blasts from 18 eggs and tried two transfers. Both took. As long as your uterine lining, body health is fine – you have pretty good chances of conceiving with even one normal embryo.

Zoey · Answer

1 normal PGT blast did it for us. We had 5 though – saved for future transfers. I know friends who had one good blast and it stuck. Don’t worry, you’ll be fine.

Sarah · Answer

I think one thing that doesn't get talked about enough is that it's not just about how many blasts you get, but how efficiently you got there.

My clinic explained that every IVF cycle has "attrition" so you lose some eggs at each stage (mature eggs, fertilization, embryo development, then blastocysts). Even in good prognosis patients, only about 30–50% of fertilized eggs make it to the blast stage.

So instead of comparing your number to someone else's, it helped me look at the percentages. Someone with 20 eggs and 4 blasts isn't necessarily doing "better" than someone who retrieved 8 eggs and ended up with 3 blasts.

Also remember that one healthy blast can be enough. I've seen plenty of stories where people had a single blastocyst that became a healthy baby, while others had many blasts but no successful pregnancy. Quality really does matter more than quantity.

IVF has a way of making us compare numbers constantly, but every retrieval starts from a different place—age, diagnosis, egg quality, sperm quality, and even lab conditions all influence the final result. I found it much less stressful once I stopped trying to match someone else's numbers and focused on my own outcome instead.