Hey MrsA,
I am in the same position you are, my SIL is pregnant with her first. my DH and I have been trying for 5 years, we have 2 serious fertility probs. me endo him motility. My SIL and her DH dont spend much time together as he works away, so in the same month we went for our first cycle of ICSI they decided to try IVF. they got pregnant. We could not go through with insemination as I was too sick.
they are now 10weeks pregnant, and I am still recovering.
Even though your sisters baby shower has come and gone, I just wanted you to know that I feel for you. there is nothing harder than having to smile along with everything that is happening. if ppl ask you why you havent got kids yet tell em the truth, that will stop the questions just as fast as anything else.
good luck in the future, plse let me know how your doing.