Neither with You 2019 one on netflix

Gergő’s mother is obsessed with having a grandchild. She has a serious heart disease and has only days left to live. To give his mum some joy during her final hours, Gergő asks his neighbour Saci, who is five months pregnant, to visit his mother in hospital with him and tell her that she is carrying his child. It all goes smoothly, but a new heart arrives, and his mum is operated. Therefore, Gergő and Saci are forced to play the roles of the loving couple.