What does it mean when there is light speckled blood in semen discharge after intercourse? When cleaning I saw a little blood only in semen discharge.

Here are some ... Seeing speckles of blood or a lot of blood in semen - as called hematospermia - is not uncommon. Fortunately, decades-long experience in investigating this with digital rectal exam, imaging study such as US or CT, and cystourethroscopy has yielded nothing significant for almost all cases. Therefore, relax and see urologist so to decide what and how much are needed for evaluation; beware "overdone"