Am I pregnant 9 weeks PP?!!!?

I’m 9 weeks postpartum. I exclusively breastfeed as well. My husband and I had sex on May 8th but the condom broke (no other contraception). I’ve taken 2 negative pregnancy tests but have had insane amounts of discharge for well over a week. Today in my pant liner I had a huge clump of jelly like and stretchy light yellow discharge. I’ve never had that before. I have no itching or burning or signs of infection either. Could I be pregnant? Is this normal?? My OB is closed for the holidays so no luck calling.