Late period. Negative tests. 🤔

Autumn • Wed, Jul 01

Hi, first time posting anything on here but I’ll get right to it. I ovulated on the 15th of June and my period was due on the 29th. I’m now 2-3 days late and am getting negative tests. I’m not sure what to make of it. My husband and I have been trying for a few months and my cycles are very regular. Any advise?