What Causes Pinkish Blood And White Discharge From Vagina After Sex?

I had my last period dec 7-13 and now it is jan1 and after I had sex with my husband I started what looks like my period but bright orangey color it looked pink when we were having sex, I also have white sticky vaginal but oderless discharge and a little burning when I urine, what do you think its going on with me?? Andby the way me and my husband have been trying to get pregnant and I am rh- andhes no...please help with some advice