Daggers: Disguised as a Boy

In a weird world, a virus has spread, diminishing the female population, and making it harder for females to be born. (It killed women, and stopped X sperm in men) To help this, the kingdom made a law that certain numbers of kids be born, with a certain number of girls, and that women, if they did not find someone or was not pursued by anyone, that they go to "houses." (The women if not cooperating, as most did not cooperate,were forced into it the "house.") The men who did not have a signifagant other either were also forced to visit these "houses", although most went willingly, and impregnated women. If a man helped spawn a female child, he would be 'asked' to do it again.
To also help keep control of the female population, the army was sent out in groups to gather a sort of census every few months or years depending on the place. The army officials had the power to place women into "houses", to force men into the army, and require families to have a certain of number of children by a certain time.(Of course its realistic and probable amount of time, and without putting stress on the families lifestyle.)
A girl's parents disguised her as a boy to get her away from the "houses" fate, but how long will she last? And will the parent's decision ultimately bring her demise in the army?