When I was really congested with stones and sludge I would do 3 LFs every other day but then would have to wait for a month or more for my bile pool to recover. The bile pool needs to be adequate to provide the pressure to force stones and sludge out when the person takes the oily potion. People get better results if they do the preparations first - parasite cleanse, kidney cleanse or other method of softening hard stones.
Consider having the tests for Celiac Disease. Pregnancy is one of the environmental triggers for this autoimmune gluten sensitivity. You may need to use a gluten challange diet before the tests. There are several Celiac/Gluten Forums which explain the tests. Celiac.com has information pages about testing and symptoms.