The pregnant image is a variation of her previous full body CG image, not the new full body image of her. That's why it's not in the same option as her new images in the CG room. Check her other full body images.
I found the issue. Due to the different choices in Brad's events there are multipleways to unlock the CGs in the CG room and the pregnant image wasn't added to all possible ways. I fixed it for the next upload. Sorry for the troubles.
