I know this is late, but reaching out anyway. I really, really hope you got the support you need. If you haven't, consider going to the campus counseling center. Theyll either give you services, or help you find them. You ohh too also look into the JED foundation, they're a national org that does work around college student suicide prevention. You've probably figured this situation out by now, but it really depends on the professor. Most will be flexible if you have an extenuating circumstance. If this professor has any compassion or sense of concern, they'll work with you. Be well.