TTC- Need Advice!!

So my fiancé and I have been trying to conceive, but we haven’t been having much luck. My best friend is 7 months pregnant and is so excited, but she always talks about her baby and it makes me kind of sad/envious. Is it normal to feel this way? It makes me feel bad because I’m so happy for her, I guess I just get kind of discouraged with myself hearing all of her happy baby news all the time.