Bc and late period

So I’m on BC and my period is late I took a test and it was negative I was supposed to start my new pack of bc but I don’t feel comfortable starting it untill I get a sign that my period is coming I’ve had no symptoms of it and I usually have really bad cramps the days prior and I’ve had no sign, should I wait untill something starts to start my pack or just start it and hope it’s regular again next month? I tested in the afternoon but I’m going to test in the morning again just to be sure but it was pretty negative