I think you should wait a couple more days maybe a week after your period is due, sometimes it can take time for the HCG to show up on an at home test. x
I tested positive with a first response 10 days post ovulation and 3 days before my period was due... If you want to try you can but I would also suggest waiting until the HCG builds up , I didn't get a digital positive until a week after I was due so all brands have different HCG sensitivity
I tested positive on the day of my missed period