What should I do

I’m on the pill and had a lot of spotting this month. I went to the doctor and they upped my dosage. My period is supposed to start today. But since I had so much spotting (had small clots two days in a row) she thinks that my period actually might have come super early and I might not get one. She said I could go ahead and start My new pill but I really want to wait and see if my period shows up. I’m super paranoid so I went ahead and took a test this morning and it was negative. Should I wAit for my period to show or go ahead and start my new brand of pill?