How to be there after a death

My husband just lost his mother and I lost my mother in law. I have never felt such a pain. I've never had a loss. We'd literally see her every day if not every other day she had to see her grandson🖤 not to mention we have another baby on the way. Due in a couple weeks if not less.

This was so unexpected and sudden, it's all a shock. I keep waiting for her to call to videochat with her grandbaby because that's what she'd do every morning. Even if it was a bad day, that phone call would make it better. My son is 2 in August so he can't comprehend that he'll never get to speak to her again and that breaks m heart.

Any advice on how to cope and be there for my husband because I don't want to make it feel worse. I'm dealing with this too and sometimes I don know how.