Nothing is wrong! From time to time our ejaculations will change in consistency and even color. Depends on alot of different things, but mostly on the number of times you ejaculate in a given time period, the more of them, the less may be available. You'll notice that sometimes there is a higher concentration of a yellowish jelly-like substance...that is actually the sperm cells in your ejaculation. Other times one may be almost whitish/creamy in color and texture or may be clear. I'd say that if you notice many more clear ones than those of creamy/whitish consistency then you may check with a doc. However, it sounds as if you're pretty sexually active and that is most likely what is causing this. Hope you're being safe!