Can you increase the number of PE days instead of PE time?

I have done a month of PE and I already started to see some small gains so I want to increase my routine a little bit but there’s a slight problem. I PE in the shower but I don’t want to lock myself in the bathroom for too long since the newbie routine already takes 25 minutes. So does increasing the number of PE days a week make up for the time I should put into it?

You can also increase intensity incrementally within your initial time period. Always monitor PI’s and adjust accordingly.