When to test?

So this isn’t even all the tests I’ve bought but I am struggling with bfn!! First month ttc baby #2 and I am being so impatient. If I’ve calculated right today is 9 dpo. AF is due in 4 days... do I wait till it’s due or if it is late?

1st pregnancy I found out 13 weeks myself and SO had no idea!! I had sickness in the evenings and then after I found out all throughout the day so I have no ideas what symptoms to look out for this early on!!