Of all the things Gray had been expecting Tonks to tell her, her having a baby wasn't it. Still it did make a lot of sense and answered a lot of the questions Gray had, had about her partner.
"Oh wow Tonks. Congratulations! Babies are good things. Granted the timing might not be great but it's a baby." She was sad to hear that Tonk's husband didn't seem to share the joy."
Gray appreciated that Tonks wanted to trust her and she shared the sentiment. "I promise not to say anything, but you're not going to be able to hide it forever. Just let me know what I can do to help ok?"