Unfortunately there’s no way to know how your body will react, you’ll just have to wait and see how it goes. I’d recommend keeping your skin care routine the same and avoid introducing new products, and eating a balanced diet and drinking plenty of water. Obviously no guarantees that’ll help though!
For the pregnancy question you’re probably best to ask that on a pregnancy/baby forum as the majority of users here are not/have never been in that situation. Bare in mind the average couple will get pregnant within the first year of trying, you will technically be able to get pregnant immediately after stopping the pill but it’s okay if it doesn’t happen straight away.