Scared😞

I'm really thinking about it and I've been on the pill for like at least 2 years and there has been many close calls were I've missed the pill and thought I would be pregnant but come to find out I'm not. And I'm just really scared that when I do want to have a baby that I won't be able to cause I'm not fertile or something.. Someone help me stop being scared..😞😞😞🤕