Here you have a few I can remember on top of my head (also including ones where the father ignores he has a child/the baby is his):
https://www.mangago.me/read-manga/99_9_of_lovers/
https://www.mangago.me/read-manga/struggle_1/
https://www.mangago.me/read-manga/surge_looking_for_you/
https://www.mangago.me/read-manga/cozy_obsession/
https://www.mangago.me/read-manga/marriage_of_a_doting_alpha_and_stray_omega/
https://www.mangago.me/read-manga/kimi_to_tsugai_ni_narenai_riyuu/
https://www.mangago.me/read-manga/stigma_2/
https://www.mangago.me/read-manga/unscented_trajectory/
https://www.mangago.me/read-manga/if_you_want_me/
https://www.mangago.me/read-manga/wish_you_all_the_best/
https://www.mangago.me/read-manga/destructive_desires/
https://www.mangago.me/read-manga/kiss_me_liar/
https://www.mangago.me/read-manga/kiss_me_if_you_can/
https://www.mangago.me/read-manga/percentage_of_love/
https://www.mangago.me/read-manga/it_s_my_baby/
https://www.mangago.me/read-manga/wakeari_omega_wa_nige_no_itte/
https://www.mangago.me/read-manga/spring_finally_arrived/
https://www.mangago.me/read-manga/it_was_just_a_contract_marriage/
https://www.mangago.me/read-manga/how_to_hide_the_emperor_s_child/
https://www.mangago.me/read-manga/the_baby_isn_t_yours/
Here you go enjoy dear
https://www.mangago.me/home/mangalist/3298757/

I was wondering if anyone could recommend manhwas where the fl or ml get pregnant and like runaway... i like omegaverse or just shoujo, josei etc. genre doesnt rly matter i just like that trope alot T-T