work bully

Does anyone else work with someone who is going out of their way to make you more uncomfortable because they are jealous of your pregnancy? This woman I work with us being extra obnoxious and loud, making all sorts of crazy sounds and when I asked her to quiet down she said that she will just have to continue doing it then! I told my manager and she still continues to do it. I just don't want the stress right now and I can't change jobs otherwise I will lose my maternity pay, does anyone have any advice?