birth control and period help!!!!

I am on my second month of birth control and never miss a pill, Occasionally take it an hour late on accident but barely. Me and my boyfriend have sex a lot but I’m on birth control so that shouldn’t matter and I take it correctly. My pills say I supposed to get my period two days ago and my tracker on here says I’m supposed to get it tomorrow. I have some symptoms but no period yet, should i be worried? could i be pregnant? what are the chances ?