Well, you haven't been waiting that long. it usually takes 4-6 weeks. I'm still waiting on some schools that I applied to in December!
I don't want to be the bearer of bad news, but the schools you applied to, with the exception of Howard, are reach schools for you. You should try to send out some applications to other schools. Good ones are Widener, Regent, NYLS, and Suffolk. Or you should take a year off and try to do better on the LSAT. There has been a large increase in apps across the board this year, so in a lot of cases, 148 isn't going to cut it.
Good luck with your apps.