>>7811885From a quick google search, the consensus seams to be that it's fine to continue to run while pregnant, with the caveats that it's not recommended to start running from scratch and that running during the third trimester is particularly tiring.
Now, I'd be a lot more worried about that woman's horrific untreated gigantomastia, honestly. It can lead to necrosis and sepsis, which can harm the child.