Pregnant?

Hi all,

I am currently 10 days late. I went on the pill about 3 weeks ago, however I started with the sugar pills so theoretically should’ve got my period. My boyfriend and I would’ve had sex multiple times before I started the pill however it was usually always protected. It is never been late so I am quite confused. I tested 4 days ago and I got a negative. I have been extremely tired, had bad headaches, been nauseous, sore boobs and back. Unsure if I should wait any longer to take another test and then go to the doctors if it’s negative again?