What do my dreams mean? :)?

Hello :) So one night last week, I dreamt that my auntie and sister had both died. My sister has just recently returned from traveling around Australia, New Zealand etc, and in the dream, she died while traveling and so never returned home. I know that death usually means someone is pregnant or good things are going to happen. The next night I dreamt that she was pregnant...which means something bad is going to happen. So the two dreams kind of contradict themselves lol I know they probably don't mean anything, but does anyone know what they might mean? Thanks :)