TTC problems

So my hubby and I have been trying for over 2 years now. There is nothing wrong with him or myself but yet I'm still having trouble conceiving. The other day my husband says you know we really need to have children. I'm 31 and I think it will give our life more meaning and purpose. (Something along those lines). It's great he really wants children but it also makes me sad because we are having such a hard time. I just told him it will be our time soon. Didn't really know what else to say. I feel blah lol.