anyone had a GnRH test??

I had one yesterday. My hormones are off and I had it to confirm a pituitary issue. Well  i was several days late for my period, I had started getting a pink tinge to my cm and I just knew my period was starting. By the end of the night last night it was Gina and now show of it today. In fact I have very clear snotty (ewcm?) today. I'm thinking the shot of GnRH made me ovulate again? Anyone else had this test done?