Sex/ spotting

So I had Sex  this weekend for the first time, I did bleed... We continued to have sex throughout the week Monday I was fine didn't bleed or anything ,Tuesday I bled and spotted only in the morning so we had sex around lunch and then after that I spotted again, and then this morning I wake up and I am still spotting 😳... I am not suppose to get my period just yet.. But any reason why I continue to spot??? 
And yes I am on the pill