AITA for telling my sister her "miracle babies" aren't special

My sister (34F) has been trying for kids for 11 years. She finally got pregnant two years ago, but miscarried. Her and her husband tried again, and after three rounds of IVF, they got twins.<br><br>Now my sister acts like she or they are sent by god or something. She even pulled me aside and told me, under her breath at a family reunion, "This is kind of a miracle. I don't want to jinx it."<br><br>The twins are now 6 months old, and my sister still acts like she should be worshiped for having them.<br><br>My sister and her husband constantly talk about the many hours of IVF, the multiple surgeries, the thousands of dollars spent, and all the time they spent waiting. Then they always add, "But it was all worth it, because these babies are a miracle."<br><br>They are getting married next month, and her husband kept a 100-page-long "love story" written on A4 pages, with a section about how their love is special and their relationship was destined to bring forth life. It was so cringe I cringed.<br><br>They always talk about the thousands of other couples who aren't as lucky, and how their babies are the only ones who deserve happiness, and how they are so lucky to have had their "miracle".<br><br>I told them, "These babies aren't special. I'm so glad you were able to have them, but they aren't miracles or sent from god or any of that bullshit."<br><br>My sister and her husband acted shocked and said I should be more supportive. AITA?