Serious constipation 6wks4dys

Jennifer • 37 year old with PCOS and irregular periods 4 th preg in third tri of 2nd child coming soon 1st born Ivf success
I can not seem I get any relief from this constipation. In addition to prenatal vitamins I am on extra progesterone injections which is making it much worse. When I finally do get a chance I am in so much pain and not much happens. Any ideas?