Are you saying that now you are going to try to get pregnant this year before you have your exams next year? Will it really be that bad to postpone having a baby until after you complete your exams? You have so much on your plate right now.
With your mother going through chemo and your sister getting married, this year will be emotional for your family and you will likely be tossed about by some of that. And now Sward is ill, too? Is it his back? If he is going to stay home, that will be another major adjustment. I just wonder how well you will be able to focus on passing your exams next year if you are taking care of and nursing a newborn at that time, and dealing with everything else. Stress!
Maybe the stamp wasn't on your papers because the universe is telling you to be patient, and that it's okay if things take a little longer than you originally planned. It's something to think about.