How is it any of your MiL's business? Sounds like something my MiL would say, bless her. Or do something with her, anyway.

TBH, it could be innocent. Do you think you would like a second baby right now, would you like it? Or would you find it hard? Because everyone tells me how much harder having 2 is. Does MiL know about the PND and is she concerned for you? How did she find having 2, was it really hard for her to adjust? Did she bond well with her second?

Or it could just be MiL-itis. Don't I just look forward to DS getting married so I can come out with evil crap and no-one can pull me up on it because I'm MiL and DS adores me! Mwahahahahaha!