Hello all.  
I'm new here but I just want to share what I've experienced in hopes that it might help you. 
 
Although dr's might tell you that it's surprising that you can't conceive after being on birth control for many years, IT'S NOT! They know that artificially controlling a cycle for so long does not allow a person to "bounce back" and have their body resume normal cycles soon after they decide to get pregnant. That's common sense. Why should you expect your body, (after 3-11 years of "messing with") to all of a sudden work normally? It doesn't know how; it's been tricked into ovulating a certain way for so long. Therefore, it is not normal for a person off of contraceptives to get pregnant before 4 months where their body has had some time to "regroup," and that's why they TELL you that in the pill's packaging. However, many women ignore that (along with the other possible side effects) and think "it won't happen to them" but in the end, it often does delay conception.  
 
I'm not telling you this to make you feel bad, just so that those who have been trying for less than a year (over a year, you probably should seek fertility treatment) can understand why their body is acting this way. It's supposed to! Getting pregnant is not a "snap" thing that we can control whenever we want to. I know that. We tried for some time, (even though I have never been on the pill) thinking that if we could do things a certain way, we would get our desired result: a baby. But, babies never have and never will be made on demand. We can't do anything, (besides have sex and hope for the best) to "spark" life anymore than we can to "prolong" it. It's above us. It's all in God's hands. The sooner that people realize that (and it took us a while) then the sooner that they will appreciate children as a blessing and not just a chemical reaction between sperm and egg that one "achieves" after they have the perfect house, the perfect car, etc.  
 
Btw, I am pregnant now, which happened when we stopped trying and left it in God's hands.