Help, I don't know why lately and I usually have been so standoffish with people I think I should call.?

I end up calling abut once or twice a month don't know why. I wonder if it's I'm lazy and just comofortable where I'm at in the moment, or that I feel when I call I"ll have nothing to talk about, or if that I'm pregnant and just tired, or because they live so far away. I'm not this bad with my one friend Jay and my brother but the other friends who are also good people I don't know I guess sometimes I just feel uncomfortable and I can't stand that about myself. I wonder how I could kick this habit of feeling so awkward. Maybe I just feel like they will think I'm a mess like my life is not all together or something