OK, there are a number of factors to consider. Firstly, it's a VERY large bag. She also appears to be carrying a several scarves, a sheet, while a large white plastic bag seems to be hovering independently off her right hip. It's definitely enough stuff to cover a seven month bump. Someone in her alleged condition, however, probably shouldn't be hauling all of it around.
Secondly, the pictures featured in today's Mirror (have a looksie here) depict a killer pair of pins. My legs resembled Flumps around the 31 week mark, but attending a pregnancy Pilates class taught me that some people are more genetically blessed and don't remotely look pregnant from behind. They can also totter about in wedges to their hearts' content.
Thirdly, you can't see her face, rendering this whole bit slightly redundant...
— Yahoo Celebrity UK (@YahooCelebUK) July 11, 2014
So how did the pregnancy rumours kick off in the first place? Eva didn't want airport staff to see her naked: "They basically see you naked, right. And not only that, but there's a radiation aspect to it, so I always opt out. I always ask for a personal pat down."
Everyone's a winner.