Me and my boyfriend had unprotected sex 3 days before estimated ovulation, took a plan B within the next 20 mins…fast forward 17 days…no symptoms other than sore boobs but that was like 4 days ago and now i feel nothing and my appetite was high around that time as well but went back to normal, now my period is 4 days late…have yellow and white discharge that’s now sticky that smells horrible but i’m coming down from a yeast infection…should I be worried?