Thanks for choosing health care magic for posting your query.
I have gone through your question in detail and I can understand what you are going through.
It is probably a contusion
occuring due to blood seeping in. Its ok and will take 1-2 weeks to heal, You should try avoiding sex for 2 weeks until the lesion completely heals.
Hope I am able to answer your concerns.
If you have any further query, I would be glad to help you.
In future if you wish to contact me directly, or want to further details about your query, you can use the below mentioned link:
Wish you good health,
Dr. Srikanth Reddy M.D.