Should I tell him now or after missed period?

kantergac

There isn’t an October group yet cz I’ve found out very early. I’m 10dpo, took a hpt yesterday and it was positive within 2 minutes with a line almost as dark as the control. We were going to possibly try for a third baby in the summer if our financial situation became better. So now I’m freaking out about when I should tell my husband. He has a demanding job and I am waiting for when he’s off which will be Wednesday. Should I tell him now or should I wait until my missed period? He will want to keep it but I want him to be happy about this and not stressed out.