Keep testing or cycle over?

I’m new to testing for pregnancy, before I just use to wait for my period as I didn’t know that the strip options existed. I’m currently 10DPO, CD 26 with my period due in two to three days. I have been testing for the past 4 days and have yet to see any lines or anything, this mornings test was also negative, should I keep testing- is there a change I can still get a positive or should I call it quits and wait for Aunt Flow?