Renting a house and the washer is full of mold?

Justice • son born 12-9-16👦 missed miscarriage 7-12-17 at 10 weeks👼 blighted ovum 2-5-18👼baby girl born 11-25-18👧

So we just moved into a rental house. And I went to use the washer and I saw something dark inside the washer and it is full of mold. I have 3 young kids( 4 years and under) and I’m 34 weeks pregnant. I don’t even know what to do in this situation. I’m super grossed out and feel like if I even clean the mold out it’s still dirty and could be a health risk? 😟 what would you do in my situation? I sent photos to the management