dear , first of all its very dangerous to take 7 uw pills in a year..it could create havoc with her organs..u can instead use condoms for that purpose..
during intercourse and white discharge are manifestations of PID
(pelvic inflammatory diseases) i.e. severe infection
in her reproductive organs.
.difficulty while urinating is manifestation of urine infection..
Get her urine examined for any infection ..also get ultrasound
I would suggest to get her examined by a nearby gynecologist at the earliest to physically examine her first as treatment could be prescribed only after that and seeing the lab