If I take a test to leave?

My fiance and I have been trying for a while and I had a short period last month and I'm eight days late this month I took a test last month but it was bfn so I wasn't too take a another test but he says if I do that he doesn't want me coming back home. He says he wants a baby but isn't ready to find of if I am out not that itll hurt him. It all sounds fishy to me any advice?