Discharge question **extreme tmi**

Does anyone have insight as to what this is?? Backstory, I’m TTC for the first time, and I stopped birth control about 2 weeks ago after taking it for 2 years. Me and my fiancé have had sex maybe 5 times since then, and my nipples are really sore and I’ve been having mild cramps. About a week after stopping bc, I bled very lightly, couldn’t even cover a panty liner. Not saying I’m pregnant, just wondering if anyone knows why I am having such heavy and sticky discharge today? Thanks!