Hello mam, thanks for trusting health care magic.
in myopinion you need to get a pelvic ultrasonography
done which will delineate the cause behind that.
but in case you dont want to go for it then wait for a day or two for the pain to subside by taking siple analgesics but if it doesnt then im afraid you might have to visit a gynecologist.
In case you have further questions you can consult me on health care magic forum and i will be happy to help
Take care and wish you all the best.
Dr Manisha Jain.