When to expect period after bcp (FET protocol)


I was put on bcp for 3 weeks. I took the last bcp on 4/23 (Tuesday last week). It has now been 9 days and still not get my period. Is it normal? When should i expect to get it? My nurse said i should get it within 2-3 days of stopping bcp but it has now been 9 days. I’m going to see my RE tomorrow if I still dont get it by today. I can’t wait to get my period so i can start FET cycle. Thanks!