Weird feelings about babies!

I am 21. Been with my hubby since 2010. I love him so much and we have an awesome relationship ♡ alot of people my age have babies and 2 people in my family just found out they are pregnant... we are not financially in a good place to have babies.. and i dont want a baby right now for practical reasons... but why do i feel so jealous about all these other preggs girls?:/