Dreaming of death

A few years ago my husband had a bad dream of his friend dying in a car crash, distraught he had trouble reaching him, I reassured my husband the friend is probably ok, I remember learning at a young age that sometimes death in dreams mean birth and dreaming about birth means death, so I told him it probably means someone is pregnant. I got in contact with the wife and told her someone she knows might be pregnant as I know they weren’t really trying to get pregnant and didn’t want to scare her. Fast forward 2-3 weeks my husband’s friend comes up to him and tells him they are pregnant and that we were right about someone being pregnant.

Yesterday my sister called me worried, she had a very disturbing dream about me, not remembering all the details but one. She dreamt of me dying, I told her about my husbands dream about his friend and it might just mean we might get pregnant soon, in fact I told her I will be finishing my birth control and see what happens.

What do you think about dreams of death? Is this a coincidence? Did she predict we will have a baby soon?