Abruption?

So no one ever went over any of this with me and I didn’t know they thought I had an abruption until my daughter transferred from our local NICU to a larger hospital and they mentioned it during rounds that I’d had a possible abruption. They sent my placenta for a tissue exam...

Also- when my water broke it was clear... how is it possible to have a meconium stained sack? (Small history- I went into preterm labor multiple times starting at 32 weeks. Somehow my daughter stayed in until I was induced at 38 weeks for preeclampsia).