I totally agree with this Great_Kate.
MeGain is kind of petite so any weight gain is very visible. She got indeed massive and fat during pg. Her face looked swollen. Even her chicken legs were not spared imo. She still looked fat for weeks after delivering.
The so called secrecy around her pg might have been due to her not liking being photographed with the added weight gain. She might have enjoyed the attention her bump gave her at the beginning but being the narcissist I'm convinced she most likely is, and her controlling traits, she can't have enjoyed seeing herself as wide as she got. Same for delivering, you can't control aspects of it, your looks etc.
Something tells me the truth is a lot simpler, perhaps MeGain hated losing control of her body so she preferred the option to hide away, with the added bonus of intense speculation ie attention that would come with it.
I can understand the surrogacy thing but being the twats that her and Harry are, they would have loved speaking ad nauseam how they courageously opted for surrogacy blah blah blah. Can't see them passing up a good chance to be the center of attention.