“Fair questions:
I mention the Catholicism reference only because of the commonly-held cultural belief that consummation is required to ‘complete’ a marriage. Roman Catholics are also the only mainstream faith (I think that’s true) that permits the annulment of an un-consummated marriage. [I’m not sure of the Anglican/Episcopalian church... particularly since it was formed from a disagreement between Rome and the King of England over this point... and I’ll ignore the historical details on that story!].”
Hold on here Is consummation first child or sexual intercourse?
Catholicism: oaths and consummation (Marriage is also elevated as one of their 7 sacraments)
Protestants: oaths alone (Protestants believe there are only 2 sacraments: baptism and holy communion (the eucharist))”
Now that is fairly strait forward Catholic are #1 or #3 depending upon your answer to the first question.
Your branch of Protestants are #4.
Yeah - Catholics include the ceremony (oaths) and consummation: your question #1.... the initial sexual encounter.