You're right, sometimes test do come back as a false negative, so you can try again. At 19, you can get free sexual health tests through the NHS, including an at home herpes test. You can also get a complete sexual health test, for free, which is worthwhile to rule out everything harmful.
You said that you "assume"your boyfriend has had the same number of partners as you. Just as general advice, I recommend having a focused and honest conversation with him about both of your sexual history. No matter how "innocent" a guy may seem, don't assume about their sexual history, be firm and confident and ask him about his past partners. If you or he is too uncomfortable to talk about sex, you are not ready to have sex.
Following a comprehensive sexual health test (swab and bloods) from a clinic or with an at home test kit, if everything comes back as negative, the next step would be to book with a GP for a gyne exam.
In the meantime, make sure to use condoms during sex.
Thank you so much for you answer! he has already told me that he had two girls before me. I have to believe what he says so that's why I wrote that I "assume". I've already been tested twice so I don't know if it would make sense to test again. Maybe my body just can't develop antibodies... I've had two appointments with my gyno and also one with a dermatologist who told me it was contact dermatitis from a new cream I used.. Do you think it looks like herpes?
tbis isnt typical of herpes in my eyes. lots look like fordyce spots
also looks like yeast infection?
I can't believe it but I have it again at the moment... This must be herpes...I just want to know what's going on...
Its a rare condition called Vestibular Papillomatosis ive had it for almost 2 uears now ive been so depressed & havent had any secual activity since