Stupid question

Single mom by choice conceived through <a href="https://glowing.com/glow-fertility-program">iui</a>... Was excited but then found out I am having twins. Didn't plan and don't think I will ever be ready to have two. Changed all my plans, giving up my home and moving back in with my parents (they are helpful but aging and make me very tired). I love them but don't want to be there long but can't make ends meet any other way. Trying to figure out how to handle two young ones alone in few years and the biggest thing I can't figure out is how will I walk the dog with two young children?! One just seemed so much easier. I know it seems like something silly but this dog is like my first child. Please don't say get rid of him. That is not an option to me.