Is abortion permissible after committing illicit acts and fornication, and what is the ruling of Islamic law in this case?

You have erred by committing an abomination, and the husband's shortcomings do not justify it. The immediate obligation is to sincerely repent, perform many righteous deeds, and avoid everything that might lead to indecency. It is impermissible to abort the fetus, as that would be another sin. You must conceal your sin and not inform anyone of the transgression. The child's lineage is attributed to the husband, as he is the owner of the bed.