You got some great advice. DO not take ANY herbal ANYTHING without a doc’s OK. Medicine comes from many herbs, and just because it is “natural” does not make it safe for a fetus.
Try listening to soothing SLOW music. GET A MOTHER’S HELPER for a few hours daily (if possible). There are many students who will help out a pregnant woman with her other kids for the chessed hours they need to complete their term. Go to a quiet place where the kids cannot bother you for at least an hour. Put your feet up, sip a refreshing drink, juice or water, and close your eyes.
B’shaa tova u’mutzlachas to you. I hope you have an easiy, safe delivery of a beautiful, healthy baby.