It is because she is pregnant that Konkona has decided not to sign any new film till September next year.
A close friend of the actor reveals, "Koko wants to keep her pregnancy under wraps. She has signed a movie, but spoke to her producers and told them that she cannot shoot. She wants to take proper care during her pregnancy, and avoid doing anything that stresses her body. Her producers allowed her to terminate the contract. She has been staying a lot in Kolkata, and has been travelling abroad too. Since this is an early stage of her pregnancy, the bump isn't very visible and Koko wants to keep this news a secret for as long as she can."
Ranvir is reportedly over the moon with this development, but he chose to remain mum when TOI asked him about the couple's good news.
https://timesofindia.indiatimes.com/entertainment/bollywood/news-interviews/Konkonas-pregnant/articleshow/6718891.cms
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