I suggest taking this advice in a different direction. Help her become a self sufficient adult now. Tell her she must get a job, help her with this. Educate her about finances, taxes, insurance, and let her know what the real cost of living looks like. If she wants to be an adult, teach her to at least be able to take care of herself and be independent. You don’t have to force her to do it, but say sex is part of being an adult and if you got pregnant I want you to be able to be a free self sufficient woman. Teach her about what positive relationships look like and let her know that future mates may find this relationship that she had at this point in her life distasteful to say the least. You don’t want her to be dependent on this sleazy old guy if the real worst case scenario happens. Give her the tools she needs to be an adult now, she may change her mind or she may not. Either way, your focus is helping her make her future the best it can be. As she begins earning money, have her set up her own phone, buy and cook meals for herself, etc. full life lessons. I hope things work out for you and your family!