HI!
Sperm can live in the
femaleCondoms
Female condoms
Female sexual dysfunction reproductive tract for up to 3 days. I think you are well "covered" for any of the ovulation dates that you calculated by any of the methods.
One thing to consider, if you are irregular, it may mean that you are not ovulating consistently. If this is the case, it will take longer to conceive. You might want to talk to your MD about some blood work ( I would do a day 3 FSH, a prolactin a thyroid panel, and a day 21 progesterone level) and ALSO something such as Femara that will help you ovulate more regularly and improve your chances.
Good luck!
Dr B