Apparently my partners mum and dad can't carry females to term.?

Hey there, my mom can't carry boys either. She had me, and then three miscarriages which were all boys, and then my sister. I'm not sure if its is ped from parent to child though. I hope not. My partner is out of a family of all boys. Seriously! His grandparents had all boys, all of those boys had all boys, and the boys from that group that have had kids have all had boys! So hopefully i'll be able to carry a boy! Good luck!