Dealing emotions

How do you deal with all of the emotions that come up when everyone around you is getting pregnant and you still have not. I know it sounds so selfish but I just don’t want to hear about another person being pregnant. My husband and I have been ttc for 5 months now and although that doesn’t seem long( I’m 41) it is still disappointing each month that goes by and no positive results. I’m just so sad and yet tonight my husbands brother is coming over. I think he is going to tell us they are pregnant. A huge part of me doesn’t even want to be here because I’m not sure I can pretend to be excited. Is this wrong of me???