Trying

My boyfriend and I recently decided to start trying to conceive and I’m nervous because I haven’t been on birth control in close to 10 years and we have always just “pulled out.” We have never had a “pregnancy scare” and it I’m worried this means we will have a difficult time getting pregnant.. We just started trying so I know “only time can tell” but is it unreasonable to worry? Any opinions and advice are welcome, we do plan to see a specialist after a few months of trying but I feel like the worry is consuming me..