Hi!
To have that spotting and bleeding after first time sex is absolutly soooo NoRmAl!
you don't have to worry as long as you are using protections!
as thattguyy said above you might have urinary tract infection and its symptoms are buring while urinating,bad odor of urine,more times urinating than usual,if this is ur case u must check a gynecolog as soon as possible to get the right medication
tc !:)
the bleeding is normal, you will probably bleed the first few times you have sex, my girlfriend still does from time to time. just make sure that you use proper lubricant because too much friction may cause tearing. As far as the odor, i dont know exactly what could cause that, one possibility could be a urinary tract infection which is common among sexually active girls