Just experienced a miscarriage. I wonder if anyone might know how the body disposes of the pregnancy hormones - is it the livers job to clear them?

Yes, the liver is responsible for breaking down excess hormones.   The metabolites are then broken down further by the intestinal flora.

The liver also requires B vitamins for the proper breakdown of these excess hormones.  Therefore, foods high in B vitamins or B vitamin supplements can help the liver with this.   Bitters can also be used to cleanse the liver so it does a more efficient job of breaking down the hormones.

I ask because I have candida along with sluggish liver function and I noticed some of my "liver" symptoms are returning. I am only guessing but could the pregnancy hormones be over-loading my liver making my symptoms worse? Thanks for any information.

For the Candida cultured foods can help with getting the overgrowth under control.  Cultured foods include kefir, miso, tempeh, sauerkraut, etc.

You will also need to feed the beneficial bacteria from these cultured foods.  Rice bran and oat bran are both good choices to feed the flora and both are good sources of B vitamins to help the liver do its job.