Unless artificial insemination of some form is involved, there's an almost 100% chance that the combination of Chris' bent duck and ED induced by titty skittles would pretty much prevent him from knocking her up.
Assuming that the turkey baster successfully worked its magic, however, she hasn't been showing obvious signs of pregnancy in recent photos. Granted, some women never do, and it is possible to cover it up to some extent, but they've been sighted in each others' company for over a year at this point. If by some miracle Chris did manage to give her a hot load of tard cum in the babymaker, it's not unreasonable to think that we'd've seen the evidence by now.