Im freaking out please help

So the first day of 2017 has come and gone and it has broughten a yeast infection and my period is late 😤😤 I would like some help or statistics im kinda freaking out, but last week I had sex without a condom he came on my chest there is little chance I am pregnant but a day or two ago I got this yeast infection could they be corilated? How likely is it that im pregnant? Oh and I am 16, fairly regular periods they are usually a day or two late and I am two days late please respond 🙏🙏