Testing

So according to glow I am 11 days late for my period. I took one when they said my period was late BFN! Then I took one around day 8, BFN! Last 2 days I felt cramping on my left side, like my period was going to come, but nothing so far. I also had watery clear discharge. My period is never late more like 8-9 days. I would have gotten my period by now and have had my period every month minus a few days late, since I had my third daughter. I’m thinking I should get another test? Go see a doctor? Wait it out? What do you think?