Pregnant or not pregnant?

I’ve been taking Amoxicillin since the 25th of January. I’ve been having unprotected sex since then & I am on birth control so I thought I was protected. However, no one informed me that this medication can affect the effectiveness of your pill.

During my 7 day break, my period always comes exactly on a Wednesday consistently. Today is Wednesday and I have no period. My period is never ever late. Since being on birth control, it has always been on time no matter what.

Is there a chance I could be pregnant?