Period is late

I had unprotected sex with mr boyfriend Jan 6 I took a plan be Jan 7 later on that week I know I had like a yeast infection and got treated for it but now my period was supposed to be due today it’s currently 6:30am I it feels like it supposed to be coming down but it’s haven’t yet and another apps said that it’s two days late but I last got my period dec3-6 then it’s came back in December 31-Jan 5 also my discharge is a lil wet and creamy it’s usually dry should I not worry?