Thanks for your query,based on the facts that you have posted it appears that you have noticed small dots in semen ( Hematospermia
This is most likely to be due to infection of seminal Vesicle
( Seminal Vesicullitis)
Please get your semen analysis
and ultrasound scanning of the abdomen done to confirm the diagnosis.
You need to take broad spectrum antibiotics like Cefotaxime along with anti inflammatory medication like Diclofenac
twice daily for 2 weeks..