Hello, I wanted to ask at what week they are supposed to register a pr…

Hello, I wanted to ask at what week they are supposed to register a pregnancy? I went to the gynecologist and she said she would only register me at 8-9 weeks. My husband and I have been waiting for this child for 5 years. This is my second pregnancy; the first pregnancy ended in a miscarriage at 4-5 weeks. I am currently 5 weeks pregnant. Please tell me at which week I should be registered.