TW: Sex while drugged
Not ABO setting, royalty can magically impregnate every gender
Uke is Captain of the guard, while investigating he got drugged and spent the night with someone, now is pregnant and has three potential fathers on hand / let's find out who's daddy, shall we?
ABO setting
Rebirth/Reincarnation/Royalty story meets murder plot
Just so you know ML was raised by MC as basically his son, so kinda adopted son/father, but author got rid of the age gap through reincarnation - still not everyone's cup of tea
Uke hiding pregnancy, misunderstandings and family drama
Sci-fi fantasy setting with magical powers, Seme has been in love with Uke for years and a misguided night together ends up making the Uke retire and run away, later he discovers he's pregnant.
Story skips to when the twin kids are a bit older and meet their father by accident - this kicks off efforts to woo the uke into accepting him as the kids dad and also as lover
ABO - Couple has been reincarnated into modern world, after they died tragically in the past, they meet and fall in love a second time
Very healthy couple, cute and caring
TW: death of unborn child (in the past storyline)
Jumps between past and present a lot, so it might be a bit confusing at first, but give it a try anyway - this one is really great!
Non ABO
Werewolf x Vampire
TW: Rape and unhealthy relationship dynamics, self-harm (only once but still)
ABO
Seme has a redemption arc and Uke kinda got his revenge, so the rape is kinda addressed but obviously glossed over as per usual for the happy ending
Really well done story-telling though so totally worth the read!
Past Mpreg
Reverse-isekai
Uke (Omega) got transported into our world without ABO dynamics, got pregnant from a rich guy, so they had a shotgun wedding
TW: Rape, Imprisonment
This is dark
More porn than plot.. Currently ongoing no actual mpreg so far - not for a lack of trying though
Who's Your Daddy?