Period late ?

Hey ladies. I’m on the bc pill yaz. I have 4 placebo pills. And today is my 4th day. I haven’t started bleeding yet or had any period symptoms like cramps like I usually do. I didn’t miss any of my pills. I did take one a little later in the day one day.

I’m a little worried. I had a lot of stress the past couple of weeks so maybe it messed with my body. I just hope I’m not pregnant right now.