As in someone telling you that you are unable to carry a boy or unable to carry a girl? If that's what you mean, then no, it's not true. Technically males choose the sex of the baby, so it's not up to you at all.
My mil was told she'd never carry a girl after 2-3 miscarriages but she did and she's fine. On the other hand my sister in law had a boy then 7-8 misses and then another boy...they reckon they were girls she was losing. Maybe hormone imbalance.
No!! That's just uneducated people talking hun!! Having a misscarriage has nothing to do with the sex of the baby!
My mil says my husband can't have girls bc she had two boys..... I said well his brother had a girl.... her response was ur suppose to have a boy first..... this woman I swear! Sorry just a little vent!