Everyone around me...

So I dont mean to sound selfish as i post this... but it feels like everyone around me, my friends, my family, strangers are becoming pregnant like without even trying or let alone even wanting to become pregnant... alot of these people have children already and struggle to provide for them or some had one night stands... shoot one of them I know is addicted to heroin and still continues to use throughout her pregnancy.... there is just so many people I feel like that aren't deserving of being blessed with a child.... I'm over here ttc for what feels like forever, every time I get a bfn or someone becomes pregnant around me that didnt even try to get pregnant it seriously crushes me inside and makes me so angry... so jealous... and makes me question why would God allow them to have children but not me???? It just really really really sucks. Please dont take this post offensive in any way I'm truly just venting... how do you keep positive even after all the negative???