Personally i dont think she will still be pregnant when she comes back from Ibiza(she either lost it in Ibiza or had an abortion), hence the reason she has gone to Weymouth to spend some time with her dad, plus the fact in scenes filmed in Weymouth she is seen drinking on the beach, plus the other fact that she wouldnt be due to give birth till Late Decemeber/Early January and Sean's exit is in Decemeber, i really cant see him leaving the square if Roxy was still pregnant, unless of course they are going to kill him off