Orange CM after intercourse

Jayme
8w6d and just stopping prometrium after fresh cycle ivf.
Dh and I had intercourse. When I wiped afterward (sorry tmi)! Amidst the clear stuff there was a half-dollar sized brightish orangish cm.  I've not had this before. I had a healthy scan last week. 
Had a mmc last year. I'm freaked out! Anyone know what this orangey cm means??