Make the first sentence usable
Lead with the reason for writing so the recipient does not have to decode a long emotional introduction. For a message about how to congratulate someone on receiving an award, use this factual base: name the milestone and, when you know it, the effort or meaning behind it.
Reduce the work of responding
Offer simple options, a narrow question, or a clear update that can be understood without another conversation. Offer warm recognition and let the recipient decide whether they want a call, visit, gift, or quiet celebration. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Respect the boundary already visible
Do not make assumptions about pregnancy, money, relationships, health, or what the achievement should mean next. Follow the person's lead on privacy before sharing their news or photos with anyone else. A block, explicit refusal, legal restriction, or safety plan takes priority over the desire to explain more.