Pregnancy

I converted to Islam in 2016... I’ve been with my Muslim spouse since before i converted. We recently discovered we were pregnant... we are not married. But we both know we are wrong. Moving forward wanting to give the baby a Muslim name. I was thinking a first name, middle name, second middle name, fathers last name. Will this be okay? Or no? Idk really know what I’m doing.... I don’t have any Muslim friends. Just him 😕