Helpppp

Hey mamas! I need some advice. My hubby and I ended up with an oops baby. We’re beyond thrilled! But I’m trying to figure out how to deliver the news to my SIL who is currently dealing with some infertility issues. My SIL and her husband have been trying since April and she’s had 3 miscarriages. I want to be sensitive to that when I tell her. Has anyone had to deliver this news before? What went well? What did not? Tell her in person or on the phone?