Confused..

Had a scare yesterday (some light bleeding and cramping) so I was sent for labs and have a follow up ultrasound on Wednesday, but they told me to call and head to the ER if I had nausea or vomiting as well as a couple other things but I’m super nauseous. Can’t tell if it’s just regular morning sickness or something I should actually be concerned about and head that way? I haven’t been nauseous the last week. Should I wait and see if it gets worse? Call them and ask? The office is closed so I would have to talk to the on call doctor who I don’t know. Should I wait till I’m vomiting? Any advice welcome! 🤷🏻‍♀️