hubby changes his mind at the last moment

So we started ttc in November and December and was unsuccessful. Hubby then tells me he was actually not ready at that time and if we could take a few months off. Well here we are in march and I went to him ask if he was ready. Told him I only wanted to try if he was 100% in. Well he says yes let's do it. So it came to time to bd and asked again he was yes all for it. we did it once 2 days before ovulation. Then I tested positive on my opks and then he wants to say He isn't ready he just told me that to make me happy and now we've missed our window. He keeps saying just given me time I'll be ready soon. Well I'm 29 (very close to 30) and he is 26. We've had the talk about how the older women get it gets harder to conceive. He just keeps saying I'm not old. Don't rush things and he is almost there.  Well I might not look old but my insides say different hunny lol  And no I can't just do it with out him knowing. I'm to much of an honest person and don't want him to feel like I tricked him. I want both parties to be all for it. My only worry is I'll miss my time to conceive