Can I be completely honest??

I am so annoyed. A friend of mine who is pregnant, is really starting to make me upset. I can understand whining a little bit, but this is getting to be to much. I feel like telling her to just shut up and be thankful for this miracle that God has given you! I haven't said anything though partly because one, I have no idea what it is like to be pregnant and to have morning sickness. Also because I really don't want to seem like a completely heartless person. But when she says things like "I am never going to have another child again" it just really upsets me. Maybe I will take this all back if I ever get to experience pregnancy and see what she is really feeling like. In all honesty it is only 9 months out of your ENTIRE life just be grateful for the morning sickness, because there are thousands of girls who would love to have what you do and wouldn't complain once! Maybe I feel like this because I have been really depressed lately, maybe it is because I am jealous, but I just had to get this off of my chest. If I didn't I was going to explode on her and I did not want to do that! I hope that no one will think less of me. I feel bad feeling like, I know I should not feel like this; I should just be happy for her and just ignore her comments, but I can't help it! I feel like a horrible person, but I am glad that I got this off of my chest. God please help me to get rid of these feelings.