encryption - Unlock locked drive with Bitlocker using Password?

I have a Bitlocker encrypted drive and when I encrypted the drive, I saved the Recovery Key to my USB. Then I changed my system windows from 8.1 to 7 (because of some reasons) and suddenly lost my USB.

Now, I have problem with unlocking the drive because I have no Recovery Key. but I still remember the Password I set to drive. Is there any method to unlock this encrypted drive with password instead of recovery key?

Note that I didn't save my recovery key to my Microsoft account.