Father issues

So, I haven't talked to my father since summer and I haven't seen him since last year. He lives about 45min away. He never calls me I always have to call him. He never tries to see any of my children which are his only biological grandchildren. He has his step grandchildren every second of everyday. He buys them birthday gifts and Christmas gifts as well as my stepbrothers and their wives but he never gets me, my husband, or our children anything. I know I won't even speak to him on Christmas unless I call him. I don't know if it is just the hormones from being pregnant but lately it has made me feel real emotional. I feel like my father doesn't really love me or care for me. Which hurts even more knowing I'm his only child. Do you think I'm valid in feeling this way or am I just being a cry baby?