Kids with my best friend?

Me and my best friend who is also my sexual friend made a baby pledge the other night. I vented to him about how I don’t feel I want to have a relationship with anyone (comes with being sexually assaulted a few years back). Truthfully I would marry/be with my best friend only because of our comfort level with each other. Is it bad that I want to try for kids with my best friend knowing that I’ll be doing it by myself (granted id have my friends and family) but without a husband or boyfriend by my side?