Should I test?

Courtney • Married to the love of my life and trying to conceive our one baby to complete our small yet mighty happy family. ❤️
Im 11 or 12 DPO and I want to know already! My husbands 25th birthday is on the 20th and I want so bad to be able to give him a positive pregnancy test as a present. We've been trying for ten months now and I just really want this to be our month. Should I wait until AF is due on the 18th or test now?!