Can this be std?

Amanda
Hi All: 
Need some advice. My boyfriend and I have been using condoms pretty consistently. Recently we started trying for kids, so we aren't using a condom. About a week or 2 later I started to develop itching deep in my vagina and itching on the outside. There is no vaginal discharge or no smell.. I have noticed that it does burn for the first time when we had sex, any ideas ?!?