smelly discharge

ok so i thought my period was over n had raw sex n then after i peed n wiped n there was blood but it was my last day so i was confused.. the next three days i had some light blood n now today it was over in the morning but rn i had some yellowish discharge n it smells wtf anyone know what this is.?? i have a appointment to the dr but until the 20th ugh. im planning on getting tested :/