Birth control pills

So its my first time trying to conceive and ive been on birth control pills for about 2 years and stopped taking them in mid may of this year. About a year ago i started taking them on going to avoid a period. I got my period regularly on may 29th and had it for 3 days. My question is has anyone had any issues getting pregnant with being on bc for a while? I'm 22. I have heard that sometimes girls get pregnant right away after trying.... Any comments would be great ! I should know if our BD worked if im pregnant around the 27th or sooner!!