Warning! Major Spoilers for Game of Thrones Season five and six below.
Ever since Sansa left the clutches of her husband, Ramsay Bolton, people have been speculating about Sansa possibly having a child with him but it is still a debate whether or not this is simply of theory or not.
If you recall in Season five of Game of Thrones, Sansa was married off to Ramsay Bolton and she was repeatedly raped by him every night. At the end of the Season, Sansa managed to escape alongside Theon Greyjoy/Reek. It is unclear how long Sansa was kept captive by Ramsay but we know that she was there for a long time.
So, is Sansa pregnant?
It is of course hard to determine but we do know that Ramsay was raping Sansa a lot because he wanted to make an heir to Winterfell which would proclaim is right to be warden of the North. We know that Ramsay wanted a child but it does not mean he succeeded. Well if we look at some specific images like the one linked here you will notice that her stomach looks a bit larger than normal. People have also noted that she is paler than normal in some scenes. The most interesting hint is in the newest Episode of the show, Battle of the Bastards, where finally see the death of Ramsay Bolton. Moments before his death Sansa tells Ramsay this:
Your words will disappear. Your house will disappear. Your name will disappear. All memory of you will disappear.
Most people would take this as a hint that Sansa isn't pregnant but any true Game of Thrones fan would know the creators of the show aren't adverse to giving their characters a slap in the face.
The slaps are not always that physical but instead more metaphorical. What if we find out in next week's Episode or in the next Season that Sansa is, in fact, pregnant. That would really make Sansa regret her choice of words in front of Ramsay.
What would she do if she was pregnant?
It is difficult to presume what Sansa would do if she was, in fact, pregnant with the child of Ramsay. Sansa absolutely hated Ramsay but we don't know if she will hate his child. It is possible that she will keep him and grow an affection for the child and we will see a great character moment from Sansa. We do not know if abortions are a thing in Game of Thrones but there are probably old school medieval abortions and there is a possibility that Melisandre can use some type of magic to perform an abortion.