What is the Islamic legal ruling on the case of a man who lived abroad and committed adultery for multiple years, forced one of the women to have several abortions, then cut ties with her, and tried to repent and get married, but still lives with regret and anxiety about the possibility of having fathered a child, and has been unable to ascertain the truth?

Fornication is one of the most heinous sins, but Allah accepts the repentance of a servant if he abandons the sin, regrets it, resolves not to return to it, and conceals his deed. You are not responsible for anything concerning the woman or her pregnancy, for a child born of fornication is not attributed to you. Beware of the whisperings of Satan, occupy yourself with good deeds, hasten to marry, and increase in the remembrance of Allah.