Hi, Thanks for using HCM.
As semen was on vagina and you had unprotected sex, there will be a slight spill of semen in vagina, there are possibilities of she being pregnant. Get UPT and blood HCG
test done for pregnancy
Minimal white discharge could be physiological, if it is associated with other symptoms needs to get examined for it.
Consult your doctor for examination and management.
Hope I answered your question. Feel free to ask me if you have any further queries.
Wish you good health. Take