Can I start by saying I am not batty!
There is a load of evidence out there that Meghan did not carry the children, in fact I would say it was a given that a surrogate was used. (I do believe the kids exist though!) What is odd is the lying about it and the obvious lies about the births etc.
Evidence;
She used (many) a fake rubber bump, but more than once it slipped (photos available purple dress, red coat), it popped in one video in a way an actual bump never would and folded in half in another again as a bump never would.
She travelled to the USA for her baby shower when she was too pregnant to fly (although I concede that she did fly on a private jet), and was photographed there with both virtually no bump and a big bump.
She travelled pregnant to a country with Zika virus which is foolish in the extreme, if she were pregnant, but perfectly understandable if not
The birth timeline for Archie doesn't make sense. She has stated she went to hospital, had an epidural, had Archie, then travelled home in the space of less than 12 hours, which is just not possible as she would have been immobile until the epidural wore off and the supposed journey was a minimum 90 minutes each way.
She has used the children of friends many times to pose for "archie" and "lilli" shots - Many of the photos of Lilli are actually Stassi Schroeder's daughter (look at the ears!)
One video with Harry and "Archie" playing footy is actually Harry and August.
She repeatedly uses other children instead of her own in photoshoots and photoshops the kids massively which makes people more suspicious.
Given her general penchant for publicity I cannot believe she didn't do the "on the steps of the Lindo wing" shot, which makes me believe she was never there.