If you are referring to a girl getting pregnant or a couple having sex than in some cases a unexpected pregnacy can thrust the pressure of marriage upon minors. But way less today than in the past.
The verb form that is used to indicate present perfect tense is have + verb - ed.
For example:
I <u>have painted </u>a beautiful painting.
Everyone is happy and gets to be with the one they love.
♣Amaranthine