HELP new guy small dick (UPDATE)

So I've been talking to this guy taking things slow, and his dick is on the smaller side. I'm talking maybe less then five inches. I gave him head and it was the first time I've been able to take it all in without gagging(😱) I've been with guys who are packin and that's the only thing that's making me nervous. I really like him we vibe I'm just so nervous that the sex is going to be bad or he's going to think I'm loose.