Are there binyag superstitions I need to know about when attending Filipino baptism festivities?

You should give pakimkim to the kid so that they will have a "baon" from you when they grow up. Another superstition would be for the preggers. When I was pregnant, I was told by my lola that I shouldn't carry the baby who's going to be baptized because she said the baby inside me would be jealous. I carried the kid, anyways. Lol because I'm a ninang. I thought it'll be rude if I turned down.