I've been having an affair 😔

The subject speaks for itself.... I've been having an affair on my husband of 6 years....and to make matters worst I just took a positive prengancy and it may be with my secret lover child...I never thought this would happen...things just fell apart with us...a lot of fighting because we been trying to convince for the pass #2 years 😔😔😒😒😒 where do I go from here....my secret lover wants the baby to be his...at first he was cool with my husband now he wants me to leave him and be with him😒😒...and threatened to tell my husband about our 2 year affair....I just don't know what to do....my husband didn't deserve what I did to him