Patch users please help

I am on my third patch, but I was supposed to start my period three days ago now. I’m not sure if it’s late because of just starting the patch or something else? I took a test 4 days ago because I’ve been peeing a lot more and sick. It was negative. Turns out I have pneumonia and I’m on antibiotics and steroids that I just started two days ago. I can finally breathe!! But question is: am I late from starting the patch? From being sick? I am with my boyfriend and we do not use condoms, only relying on the patch. Any advice is appreciated