I am 21, and have noticed the amount of ejaculate has dropped significantly. It has happened over the last 6 months. I don't know what can cause this? I never had really large amounts but now its almost like just drops are coming out. Any searches I do on the internet just confuse me more.
I don't if I should contact a doctor about this or if just letting it take the course.
Are you on any meds? Some meds will dry you out. Others, like some blood pressure meds or muscle relaxers can cause retrograde ejaculation. They do this by relaxing the bladder sphincter and allowing the ejaculate to go into the bladder instead of out the normal route.
In any case, you should see your doctor to be sure.