When should I test?

Keke
AF is due on Jan 8th. Been ttc baby #2 for about 3 yrs now. Doctors say everything is ok with me. Boobs are currently sore, I am so nauseous, and I don't really have an appetite. Oh and I get these sharp twinges in my lower abdomen. I am 10dpo. When should I test? Send lots and lots of baby dust my way ladies.