No.
Am I a bad girlfriend for not telling my bf that I love him yet? We've been dating a little more over a month
No
You don't tell someone you love them in any time frame. You will know when the time is right. A month is not very long.
Love is a deep emotion and one that usually takes more than a month to express. I suggest you only use that word only if you are sure you are truly in love and not just enjoying the newness and excitement of your new relationship.
Love involves both feelings and actions---but if you haven't felt such feelings yet, it's best not to say that you have.
And he should be comfortable (even if disappointed) with your decision.
Leave things as they are. By disclosing albeit you do the relationship might go into another dimension leading into difficulty to handle?
No, you shouldn't say or do anything until you're sure of yourself.