I had the same problem with a tribe from VV1 (see Song of Spice) Every one died save a girl of ten and a man in his twenties. They had five daughters when he died and after the mother's death, found a sixth child. I have a Hard tribe now with two girls and I am hoping for a boy.
Hang in there; there are several occurs that would bring a girl to your tribe.
MJ
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Life is hard. So put on your big girl panties and deal with it.