Seriously!?

Several weeks ago I was added to this group on Facebook:

That's right.  A group for the people who have recently gotten married and left the singles' wards here in the Twin Cities and are now pregnant.  And, you read that first line right, too.  I was added.  Not invited.  Added. 

I don't want to share my pregnancy with the other 11 people in the group.  I don't even really know them, even though two just joined our ward this fall and are due around the time I'm due (yes, that means honeymoon babies for quite a few of them).

And, the things they post on there aren't that exciting and are no brainers.  Take the following for example:

 

This was a really popular topic.  It seemed like everyone had an opinion (or two or three) and chimed in on what they thought, what their doctor appointment schedule is, etc.  Then the original poster added this addendum to her post:

Well, DUH!! If you are worried about how infrequently YOU have chosen to see the doctor and HE wanted to see you every four weeks, it's your own fault!  Schedule an appointment in between!  And, don't complain about it to this facebook group.

So, I want to know what I should do.  I've tried ignoring the posts, but I can't help looking to see what new crazy thing is being posted about when I get the little notification.  And, now they want to have a get together.  I don't want to hurt any pregnant lady's feelings by quitting the group (they would know because there are only 12 people in the whole group), but I'm sick of being a part of it.

What should I do?  I'd be glad to take any opinion.  And, if you want to join just for the fun of it, I'll add you and you can be apart of it.  We can fake your own pregnancy:)