nervous

so I'm on the pill. I take it normally and just as I should. I just started a different dosage maybe 4 months ago. my body's is slowly getting used to it and my periods are starting to line up with the pills. but my period usually comes a few days before the "sugar pill week" but this week It didn't. I know I shouldn't be worried. but I'm a really parionoid person. Idk what to do. should I wait a to see if I miss it completely or should I talk to my mom and get a test? I know I shouldn't be nervous and it's probably fine but I just id a needed to rant and get feedback