Burning and frequent urination that results in no or little urine amount, are symptoms of urinary tract infection.
This can be due to certain sexually transmitted infection.
White vaginal discharge like cottage cheese is a sign of a yeast vaginal infection (Candida overgrowth).
This usually causes painful urination, painful intercourse, swollen and itchy vulva.
Bleeding during fingering is due to injury, also, having a yeast infection makes your vaginal walls more vulnerable to friction, which can result in painful and bleeding intercourse.
Dark brown blood can be seen as a beginning of menstrual period, but, if you suspect pregnancy, do a pregnancy test.
Talk to your mum!
At first she'll be angry, but, she's the one that can give you the true advice.
Best wishes!
marija