How long should this second for?

my boyfriend and i have of late started having sex close to a week and a half ago and we lost our virginity to eachother. be both 17 years old. how long should it ending because it feels like its lasting similar to a couple minutes at most? That sounds about right lol. Don't verbs, it will get better and second longer!
The first few times will only final a few minutes. After a while it will last profusely longer, hopefully.