((I don’t know the context exactly in which she said that, but being unplanned doesn’t mean you were a mistake. Unplanned pregnancies happen all the time, but it doesn’t necessarily mean a child is loved any less.
You should talk to her about it. When you’re past this and more relaxed.
Do you have a stuffed animal or a jacket or something? Just something to hug and hold? It helps me a lot when riding through a drop.