Pregnant

So I need advice, I am on the pill and I am with the man of my dreams. And we have talked about children but he doesn't want any for a while. But I've been thinking about it for some time now and I really want to get pregnant. A few times he's cum in me and I've missed my pill but I still got my period... Would it be bad if I hid from him that I stopped taking my pill all together.?