What to.do

Well here is my situation I live in a townhouse that my grandparents own we pay them our bills of stuff we use.like water, electric, stuf like that so we dont pay them like 700$ a month like other people would since we can not afford it well I am finishing high school and becoming a pre school teacher online it will take me 4 months to 18 months to complete all this together at once my husband said that if we make more money we can try for a baby but he wants me to ask my grandparents first what do.you think