Can you recommend some omegaverse story that the omega got pregnant but the alpha didn't k...

http://www.mangago.me/read-manga/dear_benjamin/
http://www.mangago.me/read-manga/kiss_me_liar/
http://www.mangago.me/read-manga/who_s_your_daddy/
http://www.mangago.me/read-manga/hosik_s_story/
http://www.mangago.me/read-manga/hyacinth/

http://www.mangago.me/read-manga/kekkon_shite_kudasai/

And also.
http://www.mangago.me/read-manga/deliverance_of_the_counterattack/

http://www.mangago.me/read-manga/dear_benjamin/

Ff