AChau

Instead of consulting online, you should consult a gynec for offline consultation. As it was a unprotected sexual attempt chances of STD are more. Though it wasn't complete penetration, still it was a exposure dear. If you have started these symptoms after try, then you should tell your partner about it and tell him to take treatment though he have any symptoms or not. Because he also might have infection. So also needs the treatment. You have pain at that time so no penetration happened. This condition is called Vaginismus. Due to hesitation/anxiety/ fear your vagina gets lightened and try of penetration will becomes painful/penetration becomes impossible. For this condition you have to consult your Sexologist for proper counseling and treatment. Or every next try will increase fear and you will loose interest in sex. So don't ignore.

Though no penetration occurred , still it was a exposure as it was unprotected. So it's better consult a gynecologist/Sexologist to get treated for infection. The first painful experience can lead you to Vaginismus. That means when ever you try for penetration, because of this your vagina gets constricted more than before and penetration becomes painful or impossible. But to get cured you have to consult a reputed Sexologist. Proper Counseling, muscles training and desensitisation by fingering can help to get over it. If you want to, you can consult me online.