Hi dear, you are very right. Usually the pain you are describing is due the pressure of the deeply inserted large sized penis on the ovary or inflamed tissues around the ovary. Since you are getting white discharge also, you seem to have acute pelvic infection. The right sided tissues in the pelvis have got more inflamed giving you the pain during intercourse on deep insertion. Please do not waste time. Report to your Gynaecologist. These pelvic infections diagnosed and treated early can be cured. If they become chronic, they cause lots of problems including infertility, chronic back ache, painful intercourse, etc. You will be given some antibiotics and anti-inflammatory medicines. Till your treatment is complete, please observe sexual abstinence. Both of you will have to take the treatment simultaneously lest the recurrence. Please do not ignore. I hope I have counselled you sufficiently. If so, you can thank me.