Am I not important enough for him to remember?

[Isobored]

DH and I both have huge work commitments currently and working long hours.
I have endo, suffer from terrible pain and I am reliant on prescription meds to get me though my period. Asked DH yesterday to collect my script because I was working in the city and not able to get to the Dr and he was at home, so logistically made sense.
But he forgot. So I'm now facing a weekend of pain. AIBU to think if I was important to him he would remember?
For context we've recently had a conversation about me carrying all the mental load, house and putting in 60+ hours a week. He agreed to make more of an effort ......then this.

I must admit if I asked for a tea and 1/2 hour later I didn’t have one. I would shout! Where the fuck is my cup of tea!! In a jokey way. Or send a text going hellooooooo where’s my teeeeaaaaaa?????????? And I would expect back a “oh god sorry I forgot

If you don’t feel that you can do that because of either his reaction or your feelings then the issue is different

Is there a reason you would stay with this man? I doubt he has suddenly changed into this uncaring person over the weekend, how does he usually treat you?