honeymoon and birth control

My honeymoon is next month and it'll be my second month on birth control. Ive been almost perfect about taking my pills at the right time, except a time or two where I was an hour late. My fertile cycle also won't be until a couple weeks after we get back. We've never had unprotected sex, but I'm wondering what my chances will be if we do with my fertile window being a couple weeks away from the honeymoon and two months of birth control.