The Swimmers (2014)

Well, in one of the episodes, Nanaay becomes pregnant just like the Perth character. It could be similar to Girl From Nowhere

Both these movies will play with your head and both give the best mindfucks. Swimmers starts out with three friends, two are a couple and the second male lead pines after the girl and gets haunted by the girl’s ghost after she dies. Forgotten starts with the story of two brothers who are living a happy life until something in the house starts haunting them.

They are both dark romances with horror, love triangles, and supernatural beings. They have great graphics and are well made, it's a good watch.