The Lies Begin

Last night (Sunday) my sister rang me to share two dreams. The first was that I was having a baby.
"Are you?" she asked, excitedly.
"You make me laugh," I replied, hoping she would change the subject whilst knowing she would not until I had categorically answered one way or another, "What was your other dream?"
"That I had skury and my gums went black and my teeth fell out."
Delightful.
We talked about the craziness of dreams and I tried to divert her talking about one of Isabel's.
"So, you're not pregnant, then?" she persisted.
"No," said I. And this was a lie. I knew it and I just hoped that she would not know it, buying me instead a few more weeks of peace before I had to begin the apologising for lying section of the pregnancy.
I just don't want anyone to know until after this 13week scan. I don't know if we will get the results on the day, or if we will have to wait, but I just feel uneasy and fearful. I would rather have all the information and be able to tell people in a way that suits me and all at once. I don't want to have to announce it now, deal with the 'comments', then call people later on and say, 'you know I said such-and-such well now this is the situation...'
It's not even as if we have plans to alter the course of the pregnancy given any particular outcome, I just don't like shocks.
And then there is the hierarchy of telling people. If there is one thing I've learnt from the previous four pregnancies is that whoever you tell first, someone gets in a mood.
When I fell pregnant with our first child, we agreed to wait before we told anyone. Then at about eight weeks, Simon happened to be on the phone to his mother and excitement overwhelmed him and he told her. Then I immediately had to ring my mother and tell her. Just in case mother-in-law announced it, and so that, even though my mother would be annoyed that she was not the first to know, I could honestly say she knew on the same day as Anne. When I rang my mother, the first thing she asked was whether she was the first to know. And, of course, I could not lie and explained the situation. I don't think she forgave me for months, if indeed she ever has. Her resulting comment was, "Well, I don't want to burst your bubble or anything but it is very common for the first pregnancy to end in miscarriage." Fabulous, really encouraging.
With my second pregnancy I told her first, after my own husband, obviously, and never felt any reward for giving her that privelege.
Parents in law visit in ten days time, by which time I will be (guestimated) 10.5 weeks gone. Should they guess and ask, I will have to lie. Again. Otherwise I will have to tell my mother also, that same weekend, before the magical first scan and also tell her that she is not the first to know and that not only is she not the first to know but my mother-in-law was the first to know. It will be terrible.
At the end of the conversation with my sister last night, she re-asks, "So you're definitely not preggers then?"
"No."
"And you'd definitely tell me if you were."
"Definitely."
I am SOOOO sorry, little sis. But you of all people should know how it is.