Hey I think the best thing you can do is just try to let it happen... I know it is much easier said than done, but by torturing yourself every month you are bringing nothing but stress to your body. If you think you might be pg take a test, but do not test early - it is likely to be false anyway. Believe me I understand what you are feeling - we have been ttc for more than a year and my so long-awaited pregnancy has just ended in m/c. But I am hopeful and feel even stronger now. You have not been trying for too long yet, you should have no worries at this stage of the game. GOOD LUCK!
It's not uncommon to have your period and still be pg. I always have bleeding early in my pgs so bleeding is a very common symptom of being pg. If you still have any questions I would go get your blood drawn. I would also get checked out and find out why your cycles are so long also. Best wishes to you and let me know what happens...
AP