I give up

So me and my so have been together for 10 years and we've been good we waited until we had our house paid for and we were set in our jobs and we don't have any big bills and we don't have any credit cards before we started trying to get pregnant and every month nothing. My little brother who is 21 and is 18 year old girlfriend were together for 2 months and bam pregnant don't get me wrong I love my family and my new wonderful niece she just turned 4 months and now they are pregnant again and I am happy for them and to be getting a new Little one in the family but I'm just so tired of not being able to get pregnant so this is it I don't care anymore we have decided no more tracking no more worries we are just going to be us for a while and if we weren't meant to be parents then that's fine we'll just be us