Hi. I was born on Aug 5th 1971 and my BF's birthday is on May 28, 1971. Are we a good match?

Yes, you are a good match. Both of you have tacit agreement in option, and both of you are willing to share more family duties. Cooperation enhances your bonds new heights. In daily life, you can always listen to each other and mend your erroneous ways. You are good communicators as well. So don't worry. :)