Itchy/uncomfortable after Amoxicillin

I’m currently on a course of antibiotics for a throat infection, and I’ve been so itchy in my vagina area (feels like a yeast infection). I know this is common after Amoxicillin!

I went to the bathroom tonight and noticed there was super light pinkish toned discharge?! Just wondering whether this is common/has anyone experienced this before?!

I’m also terrified of being pregnant, so that’s another of my worries :( my period is 5 days away... so hoping it’s either an early period or a symptom from a yeast infection! (Not implantation bleeding :/ )

Help!!