Anyone is SAHM? Do you miss Corporate life?

I am a SAHM for almost 3 years after the arrival of my 2nd baby. I love to stay at home watching my kids growing up and spend time with them every day. When I was working and leave my first baby at home, the guilty feeling was killing me. I rushed home every day and exhausted from work and ended up can't spend quality time with my no.1. Throughout these 3 years of being a SAHM, I do not miss corporate life but I do miss to have my own income. I have no regrets although I can't spend money on perks for myself and kids. However, I am planning to resume to work after giving birth to my no.3 as I need to share financial burden with my husband, and I can't be selfish to think about the kids only.