Re: HPV/Mild Dysplasia
Bleeding during and after intercourse could also be due to mechanical trauma/friction (are you using lubricant/do you experience vaginal dryness), or possible irritation from yourmethods of contraception (are you using latex condoms, or possible have an IUD?) or lubricant.
It's good that you've been tested for STIs, and hopefully your upcoming pap test will give you some more information to go on. You may perhaps also want to repeat the vaginal swab for STIs just as a precaution, and consider being tested for other organisms such as yeast.
Have you looked into having an abdominal ultrasound to determine if the source of the bleeding could be due to something else (i.e. endometriosis, fibroids, etc.)?
Hope this helps, and best of luck!