I am so stressed about when to have sex... help

And I know that’s horrible because the more stressed I am the harder it’s going to be to enjoy it, and to conceive. But someone please talk me down and tell me what to do 😓

My husband just cannot cum 2 days in a row. In fact, we missed having sex on my peak day last month because we had just had sex the day prior. Well, we did have sex on my peak day, for about 90 minutes, and he just couldn’t cum. Left both of us feeling extremely frustrated (with the situation, and of course ended up taking it out on each other and ending up in an argument...), and of course I’m not pregnant.

I’m using Clearblue Advanced OPKs this month for the first time, and I’m anxiously awaiting the blinking smiley as our sign to have sex. But I’m on CD11 and haven’t gotten it yet... so I found myself literally making a chart of hypothetical situations... if I get the blinking smiley tomorrow, we’ll do it tomorrow and then wait for the static smiley. If I DONT get it tomorrow we’ll wait, but if I still don’t have it Saturday we should do it anyway........

And I stopped myself right there because I realized, I’m a goddamn mess and this is NOT something I should be stressing about. I really don’t want to schedule sex and make it a chore but I’m so scared that if we just do it when we feel like it, we’re going to miss my peak day again 😣

Also when we do it every other day for an extended period, he stops being able to cum even every other day... basically the more sex we have the less he’s capable of cumming...

Any advice, please, because I’m losing my mind...