I have polystic ovaries, I have a period every 5 to 6 weeks, I am currently taking pregnacare, how long will it take for me to conceive?

Impossible to tell without a full picture of your medical history.
This is really a question for your own medical practitioner.

Healthy couples, who are tracking ovulation properly may take over year at times, so there is no way to tell if the next time, or 140th time will be the one