Sisters negative reaction to my pregnancy news

My husband and I have a 26 month old and a 14 month old and I am currently 6 weeks pregnant. We’re not telling a lot of people but I told my sister and her reaction was “oh, wow”. I felt a bit deflated but let it go. The next day she called me and told me my news “triggered” her (she has a 1 month old but experienced 3 miscarriages before she had her daughter- she also has healthy 5 & 6 year olds).

I feel a little bummed out that she’s obviously not happy for me and my family. Am I in the wrong and being insensitive to her miscarriages?

Is there a way to tell her she hurt my feelings without “triggering” her again?