I'm 17 and in a stable relationship, I've been on all types of contraception from implant to different pills, but after many periods my body got back to Normal, I stopped the pill and didn't use contraception, me and my partner did have intercourse, and lately I've been having spotting like brown light patches and it got bit more for 3 days and has stopped, I've lost appetite in food, sleepy most of the day and on n off headaches, I've also been having slight pain, I've taken tests and they come out negative, please help need advice, thank you

But the only real and reliable symptom... are you at least two weeks late for your regular period or not yet? Testing before then is a waste of time, and you can't rely on anything else at this point.

But at 17... no relationship is "stable" You both are going to go through a huge maturation process between 18 and 23 and its unlikely either or you will still like what you like and think like you think after that. You are also statistically highly unlikely to be together then for many of those same reasons.

Of course its quite possible since neither of you were doing anything to prevent a pregnancy(its ALWAYS possible with sex, its just far more likely when NO birth control is used), its just too soon to know if one did happen just yet.

How late is your period?