Phantom Period on Birth Control

I started taking birth control 2 months ago hoping to make my period pains less severe and not get pregnant. It is my second time taking the placebo pill so my period was supposed to come but it hasn’t. I had all the symptoms that I was getting my period but no blood. I don’t think I’m pregnant because my boyfriend and I use condoms and he doesn’t come in me. Should I continue to take my pills normally or wait till I get my period?