Letrozole

I’m on letrozole 2.5mg and onto my second cycle with it, I’m cd3 today and for some reason thought I was on CD 4 I’m meant to take it 4-8 but accidentally took it tonight 😬 will it matter if I still do my normal 4-8 starting tomorrow? Just means I had one extra tablet? I’m new to all of this 😣 my ob is currently away so can’t ask him tomorrow..