Embryo grading

[KG2007]

Hello!

I am hopefully going to do my second fet. My first was successful and i'd like to try again. I've been looking through my old reports and noticed that the two embryos i have left have a grading of 4B(no second letter). My lasylt transfer was a 4BB which was successful. Does anyone know why there isn't a second letter? Is that bad? I have emailed the clinic but not heard back yet.

Thanks!

My clinic only graded my embryos with 1 letter too. I think different clinics follow different grading. Nothing to worry about, good luck x

Hey, thank you so much!x