How long is it until dad gets back?
I think the first thing is sitting down and setting in place some boundaries. You and your husband need to discuss why is negotiable and what isn't. You need to sit down with her and discuss these things with her. Let her know what the boundaries are. It sounds like there hasn't been any in place and I this te case, bare it in mind that it may take getting used to having them there. Have an idea of what consequences you want (no tv/phone/she has to do chores- you guys need to work that out). Maybe see what she thinks the consequences should be, maybe you can come up with something that's suits both of you.
In terms of clothing, explain that you can't afford it. Let her know this is what it is. Is there any sort of benefit (youth allowance?) being paid? If so, that would go to her primary caregiver if that's you.this would give you some control over finances.
Definitely agree with the contraception. I don't condone sexual behaviours t that age but I'm also not naive to the fact so if its going to happen at least give her the right info and help her stay protected.

Bbl soon with more info