Hi, I'm 20 years of age. I am currently on a contraceptive patch! Have been on other contraceptions but have been moved to the patch to try and sort out my bleeding. Any how since being on the patch I'm constantly bleeding (just like on the other contraceptions) I probably have about a week out of the month that I don't bleed it's very heavy periods with a lot of pain. 
I am uncomfortable when having sexual intercourse it feels as if I have a wall that I can't get past. I have children and since having my youngest this has all got worse . I have had STi swabs wich come back all normal and had a ultrasound last week wich come back normal. Ive begged my doctor for a smear test to rule everything out but there refusing as I'm not 25 yet. Would I be best Saving for a private smear test? Or has this happened to people before and been completely normal 

Thankyou for reading