Betrothal
In the rite of betrothal, the couple formalizes their engagement before God. This is different from the proposal, which may happen in whatever romantic way the husband to be may think best. However, after the proposal, the couple may come to the church and declare their intentions to be married before God.
There are three main parts of the ritual:
1) The couple joins their hands and declares their intention to marry to each other. Afterwards, the priest wraps his stole around their hands and declares them betrothed.
2) The priests blesses the engagement ring. The man then takes the ring and places it first on the index finger of the bride to be saying, "In the name of the Father," then on her middle finger saying, "and of the Son" and finally on her ring finger, where it stays, saying, "and of the Holy Spirit."
3) Finally, the couple signs a document promising to eventually marry each other. The document is signed by couple, the priest and two witnesses.
Churching
This is an old tradition in the Church. After a woman gives birth to a child, there's usually a period of time where she cannot get to church. When she is ready to come back, there is a blessing the priest offers to her as she gives thanks to God for a safe delivery and is welcomed back to the church community.
The ritual is fairly simple. The woman kneels at the threshold of the church, holding a candle. The priest meets her there and, after reciting a psalm, leads her into the church. The woman then kneels at the altar, praying in gratitude to God. Finally the priest offers a prayer for her and blesses her with Holy Water.