My mom's vivid and religious dreams

[Angrboda]

So my mom grew up in a Greek Catholic house, she isn't too religious, but does believe there may be a higher power like a god or something of that nature. One thing that's kind of strange to me is this. She has 2 children, myself and my brother. She also had 2 miscarriages, where after about 6 weeks, the fetus died. She told me that it wasn't particularly easy to conceive, and that there were times where it didn't work. However, when she became pregnant with me (the day before she found out) she had a dream with mother Mary telling her she was going to be giving birth to a child. It happened to be true. Then, her next attempt to have a baby was a miscarriage, and while she was at one point pregnant, she did not have a religious dream. Then, she had my brother, and the day before she found out about being pregnant with him, she said Jesus came to her, lifted her up, and said she would be giving birth to another baby.

I know these could be written off as just dreams, coincidences, potentially anticipation lead the brain to expect pregnancy, but these dreams didn't occur for the 2 miscarriages, does this potentially mean anything supernatural at work here?

Don't believe everything you hear, especially from mothers.