8DPO when do I test?

Hey everyone, I am a 39-year-old with three children between the ages of four and 19, and my husband and I are trying for #4. We got pregnant on our very first try with each of our first three, and this one has not been that way. I have a 24 day cycle that is very regular, and right now I am eight dpo. I am having a few odd symptoms like breast tenderness, and abdominal discomfort with a couple shooting Ab pain. I had a 1° drop in my bbt this morning, after a consistent rise. Nothing that tells me I’m pregnant or not, but when would you start testing?

Also, What types of daily testing would you guys recommend if we are successful?