am i ready?

Cl

i have a 5 year old son who i’ve only had full time for a year as i had severe postpartum depression so my mum & dad took over for me. I have just found out two weeks ago that I am pregnant while using the patch as contraception. Is it normal to be scared and feel i’ll not ready? I’m so scared i’m going to get ill again. And also is it normal to worry my son will resent his sibling if i can do it myself. feeling very worthless right now as i would love more children i’m just worried i can’t do it