Based on the message in Filipino, "Ang pusa ko ay kakapanganak lang nang limang kuting," your friend indicates that she had five kittens. So, you can congratulate her on the joy of her small family consisting of five new kittens. Here's a sample congratulatory message you can send: "Kamusta, [Friend's Name]! Wow, kasi ang pagbabago ng mga pananamit na panahon nito sa iyo, kaya naiibigin mo ang iyong siyensya na naisumilang kababagin sa iyo ng limang kuting. Kasi iniipon na ang kaloob sa inyo ng buhay, kung ba katulad muna ng ika-sandaang okasyon, malaman kaya, ganyan matahikan niya kala. Kahit mahal mo sila, masaya pa ring tagumpay. Much love, [Your Name]!" This conveys your warmest congratulations, reflecting both the number and the exciting news that your friend has shared with you.