Hi. My Name Is Khalifa. I'm 21 Years Old. I've

Hi. My name is khalifa. I'm 21 years old. I've been having worries about my speem color for a while. I started masturbating since when i was 15 years old and then my speem color is whitish all the time. When i was about 18/19 that stsrted to change a bit it sometimes become white or yellowish. So i wanted to ask if it's normal and also if it doesn't affect my ability to produce babies in the future? Please help me out.