Harry "let slip" that Meghan did not give birth is based on a misinterpretation of his words. In an interview, Harry said that Meghan "went through so much" during Archie's birth. This could be interpreted as Harry saying that Meghan had a difficult pregnancy or childbirth, but it does not necessarily mean that she did not give birth to Archie herself.
There is no reason to believe that Meghan and Harry would use a surrogate to have Archie. Meghan has spoken openly about her desire to have children, and there is no indication that she has any fertility problems. Additionally, surrogacy is a very personal decision, and it is unlikely that Meghan and Harry would choose to keep it a secret.
The claim that Archie came from a surrogate is a baseless rumor. There is no evidence to support it, and it is harmful to Meghan and Harry's privacy.
Here are some of the reasons why people believe that Archie came from a surrogate:
Meghan was seen wearing a loose-fitting dress during her pregnancy.
Meghan did not post any photos of her pregnancy on social media.
Meghan gave birth in a private hospital.
Meghan and Harry did not release any information about Archie's birth weight or length.
However, there are explanations for all of these things. Meghan's loose-fitting dress could have been due to her personal style or her comfort level. She may have chosen not to post photos of her pregnancy on social media for privacy reasons. She may have given birth in a private hospital because she wanted a more personal experience. And she and Harry may have chosen not to release information about Archie's birth weight or length because they didn't want to share that information with the public.
Ultimately, there is no evidence to support the claim that Archie came from a surrogate. It is a baseless rumor that should not be taken seriously.