I'm sad they are sad.

So hubby and I are getting ready for our first IUI after ttc for 18 months of trying. I am feeling a lot better after we saw the fertility specialist and we found out my husband has some sperm issues as well. I know it sounds awful that I felt relief but I was glad it wasnt just my fault we haven't become parents yet. Any way I'm nervous about the IUI but I know God will make us parents one way or another. With all of that being said, I am sad when people get sad telling me they are pregnant. I mean yes I'm a tad jealous (especially when they weren't trying or they were using protection.) But I'm so happy another baby will be in this world. I dont want them to be afraid to tell me or sad when they find out I've been trying for so long. I want to be excited with them. Not for them to feel sad for me. Anyone else have this happen??