If you think you might be pregnant, you should take a pregnancy test. Take it first thing in the morning before you've emptied your bladder. If you're pregnant, the pregnancy hormone (hcg) will be more concentrated and you'll have a better chance of triggering a positive.
You might want to join our "getting pregnant" forum. The women there are trying to conceive as well, and can offer wonderful advice and support. They're a great group of girls.
Good luck, hon. I hope you stick around!