i dont read too many shoujo unfortunately, these are the only ones i could remember:
http://www.mangago.zone/read-manga/ge_good_ending/
http://www.mangago.zone/read-manga/watashi_ga_motete_dousunda/
http://www.mangago.zone/read-manga/kamisama_hajimemashita/
http://www.mangago.zone/read-manga/kanojo_ni_naru_hi/
http://www.mangago.zone/read-manga/kyou_koi_wo_hajimemasu/
http://www.mangago.zone/read-manga/the_one/
http://www.mangago.zone/read-manga/akuma_de_sourou/
http://www.mangago.zone/read-manga/ookami_shoujo_to_kuro_ouji/
http://www.mangago.zone/read-manga/hajimari_no_niina/
http://www.mangago.zone/read-manga/hana_to_akuma/
i want the ending of the story like this...the heroin is pregnant..kind of like happy ending....