not sure if it's my new pill?

Sarah

i recently changed my pill's dosage- went from junel fe 1/20 to junel fe 1.5/30. so usually i start my periods on monday (second pill in the placebo row) and yet im pretty sure i havent started? is this my body adjusting to the higher dosage?

(boyfriend and i had protected sex twice 3 weeks ago so i dont think im pregnant)