Nearly Made It in Time

Well, Friday was the Loretto Order dinner and I did NOT wear the pink sweater. It is all knitted, but I need to block it and sew it together. I tried to sew it together without blocking as the instructions suggest, but it is too hard to get it together. It needs to be stretched out because it has a lot of k2p2k2 sections and in the picture these stitches are flat not ribbed. So I'll block the sweater and then sew it up. I have this real fear the sweater may not fit, especially the arms. So the question becomes do I try and loose weight or redo the sleeves??????