feeling like husband doesn't feel the same

About three/four months ago I went off my birth control and told my husband. We decided that that around August we would talk about trying (it's had to be brought up by him). The end of August rolls around and he finally says "so I think I'm about two weeks I think we could start trying". He was wanting to finish with this HUGE project that is doing. It's been 2 1/2 weeks and he is still like a 3 weeks out or so from being done. A part of me feels like he doesn't really want it have a baby. I mean yes there are some things I didn't write in this from I figured give the short story.