My sperm used to be white untill last month when i used a delay cream on my penis while having sex, since then it is watery/clear.why is it clear?im 18

You mean semen: The color and consistency of semen varies with many things including prostate function, hydration, frequency of ejaculate. What you describe is a normal variant and not related to the delay cream.

Semen: Your semen are normal. Semen changes texture, color and viscosity from time to time based upon nutrition, ejaculation and a number of other things. The delay cream could not in any way change your prostate fluid production process.