?

I don't know if they are what you are asking for but here are some:
http://www.mangago.zone/read-manga/kedamono_arashi/
http://www.mangago.zone/read-manga/kiraide_isasete/
http://www.mangago.zone/read-manga/deliverance_of_the_counterattack/

I can confirm the first two are 10 out of 10 ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

Doesn’t have male pregnancy shown, but has kids and talks about male pregnancy
http://www.mangago.zone/read-manga/tadaima_okaeri/
This is a cute Haikyuu DJ
1 http://www.mangago.zone/read-manga/haikyu_dj_tanoshii_jogoku_wo_irodoru_nara/
2 http://www.mangago.zone/read-manga/haikyu_dj_tanoshii_jigoku_wo_irodoru_nara/

Since I had already read Tadaima Okaeri, I tried the Haikyuu fanfiction and oh boy. I really appreciate it ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

This is the third (and last) installment. I thought it was sad, so I didn’t add it. Also, this is the author of Given, if you didn’t recognize the art.
http://www.mangago.zone/read-manga/haikyu_hikari_no_ko_doujinshi/

This isn’t male pregnancy, but this is one of my favorite do of hers.
http://www.mangago.zone/read-manga/haikyu_dj_shisseishou_oikawa_tooru_no_hanashi/
She does a lot of great Haikyuu DJ’s