Hi VV, perhaps you would be able to relax more about the actual birth if the mil issues were resolved, thats a lot to contend with on its own!
I think you are overwhelmed with the whole situation,and I'm not surprised!
First, your DP needs to know how stressed this is making you, the main aspect being her expectation that he will collect her after the birth leaving you with a newborn and DC1
Don't worry about sounding like a bitch, just ask how she is planning on getting there as he will be needed!
Perfectly reasonable, the other stuff is, to be honest things that ultimately you have very little control of, the finger sucking I would suggest getting some hand gel and insist on EVERYONE visiting using it before they handle the baby! Kind of makes a point about germs in a subtle way!
And at least you have made sure hers are clean if she feels compelled to stick her finger in!
The facebook thing, is her own ignorance, MIL's are a law unto themselves and as you already know mothers and their sons are a force to be reackoned with!
So, instead of letting it upset you, just try and look forward to your exciting new arrival, focus on yourself your DC1 and your DP.
You are not a wuss, labour bloody hurts theres no getting away from that, but it is a means to an end, meeting your little DC2 sometimes knowing what to expect is worse than not knowing!
I'm 37 weeks pregnant with DC3, and also have a 'well meaning' MIL!
I have learnt to embrace the rough with the smooth (her turning up unannounced beeping the carhorn outside having already tried to let herself in the back door when I was in the shower to attract my attention V's her tackling the ironing pile!)
My biggest fear, however, having two sons is that one day I will have a MIL thread going about me!!!
Please try and enjoy your last few weeks of pregnancy, good luck x