27 years couple miscarried second times.biopsy=trisomy 12,47 chromosomes.chance of happening again?how to treat?why it happens?tell me briefly plz

This is a random: occurrence which can happen to anyone. You shoujld get genetic counseling. You may ask for fetal DNA analysis in in a future pregnancy at 9 to 10 weeks--results in 3 to 6 days, so you will not have to wait for confirmation of normality. You deserve this testing..You may call the genetic counselor listed on your chromosomal report now for a full discussion, but in-person consult is best