After a hsg.....femara....

Kerri • 17 months ttc, 4 cycles fertility treatments just got my + hpt today!!!
Anybody have an hsg done before? I had one on Wednesday. I also was told to start femara on Wednesday. I didn't have any brown spotting, but since Wednesday night I am having tons of ewcm
​Can anybody else relate to this? Is it the hsg? Or the femara? 
​I'm also wondering  about the hcg trigger shot. Anybody had this done after femara? I'm wondering if it's something I should bring up with my RE?