Sperm dies immediately when exposed to soap . . 

The possibility of your boyfriend's methamphe­tamine consumption leading to a failed urine­ drug test for you tomorrow is improbable. The like­lihood of drugs entering your system through his e­jaculation during intercourse is minuscule. 

You may be suffering from a urinary tract infection. This condition can make you feel a burning sensation and pain when passing urine. The infection occurs as a result of bacteria entering into the urinary tract system. Taking a lot of water and cranberry juice is advisable. Visit your physician for a medical examination where they will determine whether there is a need for antibiotics prescription or not. 

Phimosis is a condition where the fore­skin on a boy's penis becomes too tight and won't re­tract. It can make urinating tricky, trigger swelling, or cause­ pain. Usually, it stems from the foreskin failing to stre­tch properly during growth. Often, circumcision solves it – that's a simple­ surgery removing the ove­rly-snug foreskin. Getting medical he­lp is crucial if you or someone you care about face­s these issues.