Please help 😩

Hello! I am currently 10 weeks pregnant and I have not used the restroom in exactly one week today. My doctor has me on Miralax and Colace but still nothing… they said it by doing this for three days I have not gone I can do an enema but I am terrified after what I’ve read. However, I obviously cannot go much longer without using the restroom. Does anyone have experience using an enema while pregnant?