Arguing about not having sex during peak fertility???

I looked around for this topic and I'm sure it's been posted a lot before, but I can't seem to find anything on it....

So I'm due to ovulate today and we've only had sex twice during my entire fertile window; once 4 days ago, and yesterday. Based on the 3 critical days, day before yesterday, yesterday and today, he said he was 'too tired' to have sex. The only reason we did it yesterday was because it was first thing in the morning (but it wasn't exactly romantic!) anyway, i wanted to try again last night and again he said 'No I'm too tired.' I got pissed off about it and we got into an argument. He said I was being a bitch because I didn't get what I want and he felt he wasn't allowed to be tired...

I understand that, but it's like jesus christ, of all the times to be 'too tired' why does it have to be during my peak fertility?? Two weeks ago when AF came and I was absolutely certain I was pregnant, I got so upset about it and felt absolutely deflated. He said 'it's fine, we'll just try again.' So it's like, well, apparently not!

How do you guys manage with this sort of conflict?? Am I being unreasonable? I just feel like there's another month wasted, unless we're lucky and conceive based on that one time. I feel like it's too important to just say 'I'm too tired.' Surely if you wanted this you'd try to overcome it? I feel like he doesn't consider my feelings about it at all, and he's only thinking of himself. I had a miscarriage in January and ever since we've just tried again with no luck so far. He knows how much this means to me and we both agreed that we wanted to try again, so it's baffling to me that he can't see why I got so frustrated last night. I did apologise to him for making him feel like he couldn't be tired, but what am I supposed to do otherwise? Because then surely it's like we're not really properly trying to conceive and it's just 'Ah if it happens then it happens.'

Also, we're getting married in October next year and he had said that we should stop trying at some point before then if we haven't conceived because he doesn't want the stress of the wedding organisation with a newborn or whatever....but if this is how we're going to be spending our fertile window, sex being dependent on when he isn't tired (which seems to be seldom!) then that puts a further strain on things and makes this 'deadline' seem even closer.

Ugh sorry, this is a bit of venting on my part. I just really need some advice 😭