oh the drama when the seme is the one found out he's pregnant and wanted to get rid of his child like I dont think he will be like: okay i understand you want to abort it.
I can think of 3 roads:
1/ he begs him to keep it
2/ he went batshit crazy and be like "you will keep my child even you dont want too"
or the uke decided to keep the baby and runaway lmao
or if there's a novel please spoil me TT