What Causes Depression After Removal Of Cyst And Ovarian Drilling?

Hi, I have recently had a large cyst removed from inside my right ovary and had ovarian drilling on the left ovary only 3 weeks ago, however i have been extremely emotional and have been crying over the slightest thing. Could this be my hormones or could it just be my situation at the moment. My partner and i have not been getting on and have felt under pressure to try for a baby due to my PCOS?