The average time is 6 months to one year for everyone (regardless if you've been on the pill or not)--especially for those of us over 30! Usually only teenagers (which makes no sense!) get pregnant at the drop of a hat (so wrong).
The less stressed you are, the easier it will be to conceive. Have a glass of wine before you try :-)! Cutting out caffeine can help, too. (You've had two, so obviously you can get pregnant...just relax. :-)
Good luck!
D.
P.S. While I totally understand the other posts about discovering when you ovulate, I'm pretty sure that those darn ovulation tests caused me to over-think the whole process when we tried for our son (which led to feelings of frustration and depression). Once we stopped "trying"--let's just say when we conceived him, pregnancy was not in our minds--bam! we got pregnant! :-) Happy trying!