After several hours of research and discussion with my husband we have decided not to biopsy our embies for PGD.
There is too much at risk - a false positive or damage to an embryo.. and with only 4 successfully fertilized we dont have much room to move..
This does mean that there is a chance we will get pregnant with a boy and thats ok. We've upped our chances for a girl significantly and I'm happy with that.
Hopefully I can sleep now. I am praying for my embies to stay safe.