When to test?

Kennedy • Married to my soulmate since 7.4.2020!💍💞 We have a 4 year old son, who took a year and a half to conceive! We are expecting baby girl March 11th 2021 after 2 1/2 years of ttc with fertility treatments 💖
I have spot on 45 day long cycles, I ovulated on the 29th of May (cycle day 23) that makes me 11 dpo today. My expected period is on the 21st. Thats 11 days from now. With my extended cycle days when would be the best time to test? Please help!