Low red blow cells and pregnant

So I have an oncologist that checks my blood every 3 months and when he checked it this month he said they were low due to the pregnancy. Does that mean I’m close to being anemic? Should I get the COVID vaccine on my own or wait to ask my obgyn? I’m switching doctors this week so I am waiting for an appointment with her. Has anyone else been through this? I’m 32 weeks pregnant.