Weight loss due to hormone intake?

Patient: I have the Skyla IUD and before that was on Micronor. I’m 18 years old, 5’0″, 76.50 pounds. I was 83 pounds January of 2014 and before that I was 88 in January of 2013. I am losing weight. I was put on Micronor in 2013 around August and then got the IUD in May 2014. Could the weight loss be because of the hormone progestin?

Symptoms: Diarrhea, nausea