I'm in no way suggesting she's faking her pregnancy (that's just too weird for me to even contemplate) but the bikini pic is not real evidence of a pregnancy. Even the slimmest of people can 'push' their stomach out to make them look fatter than they are. I'm not saying that's what she has done, btw, just pointing that out. It would have been much better evidence if we had a video of the bikini shoot.
That is definitely a pregnant belly.