you should always be concerned when you have unprotected sex. the risk of an std is not worth the worry so why not just use condoms and protect yourself? your symptoms could indicate a yeast infection since itching is a primary symptom but there is really no way of knowing if you have contracted other stds unless you were properly examined and tested. it is sooooo much easier to use condoms.
i had unprotected sex and after 2 days my virgina started itchying its now a week and it itches only at nyt shud i worry