Personally I would call the police and file a report. Then I would call the jerks in New York in the legal department and ask them if this is behavior they condone....and I would send a copy to them.
Then I'd make a third phone call to the local elders and tell them that you had called the police, and the legal department and they had better tell their sheep to stay on the farm and far away from you and yours. I'd also tell them that you plan on hiring an attorney and suing them all if they don't keep every JW away from your home, and if you have any complications with your pregnancy due to this stress you will civily sue them and you know that you may not win but you're willing to make this a very public battle dragging Jehoovers name through the mud.
And if your husband doesn't stand up for you, I have some sad news...He may never.
I've gone through this with my husband, his mother accused me of our first child not being his...and that was a flat out BS lie. He and I were married and I love him dearly and would never think of sleeping with anyone else.
My husband has finally taken the stand that you must be nice to see him or our children. They can't do that. We don't see them.
Best Regards,
Chrystal