swollen vagina??!!?!

Nyâh
just got into a new relationship with a guy thats pretty "lengthy" in certain areas. me, just loosing my virginity on New Years eve, ig something went wrong and i woke up yesterday anddd "it" was swollen ..
i iced it to make the swelling go down but i just wanna know if anyone else has had this problem and what do i do if it happens again. 
btw - no pain! 

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