Feeling sad about no bfp!

I know it sounds really selfish as I have only been trying for 8 months for baby #1 and I know it is much less than alot of couples but it is really starting to upset me that we are having no luck as it seems everyone has had their bfp! My best friend started trying again for baby #2 pretty much when she heard that I was trying and got pregnant on the first try with someone she's only been with about 9 months (me and hubby going on 9 years) and a friend of mine also got pregnant on her first try and she has invited me to a joint baby shower for her and a friend and I don't even want to go! Also someone I work with conceived while her boyfriend was on day release from prison! I know how horrible I sound but we were waiting until we were in the right position for years (large enough house, good jobs, had time as a couple etc...) to stay trying to conceive and just can't help feeling sad!