Need to vent

I recently had a miscarriage in mid January, and we've decided to TTC again and started trying immediately. In the mean time, my 16 year old nephew got his 14 year old girlfriend pregnant and their baby shower is next weekend. So they decided to ask me to be in charge of games, plus I had to buy them a gift so here I am, buying diapers, bottles, baby clothes, etc and researching baby shower games, I'm very excited for them but also sad that I can't plan mine yet. I just hope & pray that I get my BFP soon. We were so devastated after losing our baby, it just doesn't seem fair. Don't get me wrong, I love them & I'll love my nephew when he's born but it's so hard! Just needing to get it out cuz I don't wanna talk to any family about it then have them think I'm being selfish.