Avg cycle don't know when ovulation happened but if had sex on day 9 of my cycle, what are the chances of pregnancy? had mirena (levonorgestrel) removed a month prior.

It is possible: If you are not currently on birth control and you have unprotected intercourse, you can get pregnant. The average length of cycle is 28 days, making days 9-14 the most fertile. Your doctor can help determine your pattern, taking into account your past cycle pattern , including when you were using the iud. The closer you have sex to the time you ovulate, the greater the chance of becoming pregnant.