Birth control pills after delivery

So I have a question for all the mom's out there. I'm a first time mother. I'm about 8 weeks pp. My Dr. put me back on my birth control pills. And I have a concern.i want to have more children not right away obviously and I'm concerned that being on the pill that when we are ready to try for another one that I might have a hard time. So my question is did any of you ladies ever go back on the pill and if so did you have a hard time?