When to test?

Ash • Happily married and blessed to have welcomed our TWIN BOYS via IVF a year ago in March of 2017! 💛🔬🍍👶🏼👶🏼
I'm going to be 9 DPO tomorrow. Should I test then or wait until next the middle of next week. AF should be here June 15th. Ahhhh going crazy!