I believe this movie is Thai, or at least east Asian.
In the beginning of the movie a girl finds out she is pregnant, and asks a doctor if she can abort it. Then she goes to a train station, and she catches a stroller that was about to roll onto the train tracks. Fast forward, she finds out her boyfriend's ex wife/girlfriend's (who was killed or committed suicide, can't remember) spirit is inside the baby she is carrying. Pregnant woman then attempts suicide by jumping off a hospital building (twice!) but she survives.
Also the woman consults a buddhist monk and asks him about the supernatural activity, in which she is then told it is due to karma. The movie flashes back to when pregnant woman's boyfriend's ex-wife discovers her husband was cheating on her with pregnant woman (she was not pregnant at the time). I think this is a movie on netflix, but I'm not certain.
Movie looks like it was made in the mid to early 2000s (so like 2001-2010). This is a crazy movie overall, it's just too bad I forgot the title of it