His family says they don't know anything about this
BOMBAY TIMES (February 21, 2016)

So everyone, brace your self. There might be a new arrival in B-town. And by that we mean, a new bundle of joy. Rumour is that Shahid Kapoor and Mira Rajput, who tied the knot amidst much fanfare on July 7 last year, are expecting a baby. Shahid didn't confirm it, and the rest of his family said they were unaware. His sister, Sanah Kapur said, “I am not aware of any such news and I don't want to comment on it.“

Supriya Pathak responded saying, “I don't know what you are talking about.“ Well, we will know sooner or later. Watch this space.