Baby boy name dilemma

My hubby and I are not finding out what sex baby #2 is. So we need a girl name and boy name ready in case. For a boy name we both really like Kellen. Only problem is one of DHs cousins (he has LOTS and not close with this one) is married to a Kellen. We hardly know him, but he'll be around at family functions, reunions, etc. Should this stop us from using the name? Is it weird?