Pregnant

Ok so I have a 2.5 year old girl and had my second pretty close to her he is now 15 months old and today I find out I’m pregnant and there will be a 23 month gap between the younger to, my partner said he never wanted anymore kids so we were using condoms, but I guess the condom split cause here we are again, I’m scared to tell him about the baby and I’m freaking out myself as we are just making ends meet now with little spare, we own our home it’s a 3 bed with a box room big enough for a single bed so space is ok, please tell me everything will be ok, I recently lost my mum my best friend she helped me out so much and was always there when I needed advice