Fecal calprotectin (FCP) is a stool tests that measures the amount of inflammation in the GI tract by measuring the amount of an inflammatory protein called calprotectin.  The higher the FCP, the more inflammation in the GI tract.  Pregnancy does not cause a high FCP.  Therefore if your FCP is high, it points towards inflammation in your GI tract, and your GI doctor may need to investigate or adjust your IBD medications.