17 weeks.. baby is coming

Midwife says she thinks my baby is coming soon.. has this happened to anyone and it not be true? She said I’m showing signs and because of my past history she doesn’t believe I’ll go full term. This is her first year as a midwife and I don’t know if I should get a new one. My dr appointment was yesterday and told me I was fine but midwife today said baby can come any time now