When to test

Af was supposed to come yesterday and I was like ok maybe she will come today...WRONG!!! I know this is only the second day but when do I test? We want baby #2 so bad

UPDATE!!!

I was pregnant and miscarried I thought it was a clot but it wasnt😫 I feel so horrible and I know my daughter wants a sibling and her dad want another baby but we will have to try again