Unfulfilled ๐Ÿ˜ž

So lately I've been feeling unfulfilled ๐Ÿ˜ž...I used to work two jobs which I loved and was doing that for over two years but I didn't have much time to spend with my husband or the family because of it. I worked hard and went through a lot to finally find a full time job in something i thought I loved. Now I'm not sure if that's what I really want or maybe because I just started and don't feel in my element yet or maybe because my sister in law...my aunt...and two close relatives of my husband are having babies and for the past year and a half I haven't been able to conceive. I feel so unfulfilled, sad, unaccomplished that I don't know what to do. I'm happy for all those babies that are going to be part of the family but can't help it and feel sad when my husband holds a baby and gives me that hopeless look. Can't help going into work and feeling like I can't do the job when deep inside I know I can but I feel scared of doing mistakes and being a failure and not being able to accomplish that either ๐Ÿ˜ข I know my thoughts might be all over the place but that is how I feel right this second.