I think I will try to have my doctor in on the surprise. I have a scheduled examination coming up soon, but my husband thinks it is just my yearly pelvic exam and PAP smear. He will be completely bewildered as to why he's following me into the exam room, and then he will see the monitoring equipment and he'll figure it out!
I am still thinking of how to do this in a clever way. Maybe doctor and I will speak in "code" words about this other 'third person' who will be joining us shortly. I don't know exactly how yet, but I want it to be good!