Stopping Dydrogesterone (duphaston)

Hi, I'm currently at 9 weeks pregnant via IVF. Have been taking Dydrogesterone since embryo transfer 3 times a day and today the doctor told me to stop Dydrogesterone since the protocol is to stop at 9-10 weeks. Wanted to know your experiences how you stop your Dydrogesterone support. I'm concerned stopping so suddenly may cause potential miscarriage as I had recurring miscarriage previously.