Advice... HELP!!!

So about a week ago I had a slight itch in my vagina. I thought it was just irritated from my undies ( usually don't wear them) so I didn't pay it any mind. However now it has gotten worse.  It itches and gets irritated more often. I googled whether this is a common pregnancy symptom and it said it could be a symptom because of the amount of discharge the vagina secretes it could cause possible irritation. Has anyone experienced this before ? What can I do to relieve the itching ?