"General Hospital" star Sofia Mattson posted a fabulous picture of her with her newest baby bump on social media, saying, "Many of you guessed it already... Baby girl due in May." Costar Josh Swickard (Harrison Chase) responded with, "Gah!!!!!" to which Mattson replied, "So many fun playdates ahead!!!" Swickard recently announced the birth of his second child with his wife, Lauren Swickard. Many other costars sent congratulations, including Avery Pohl (Esme Prince), Katelyn MacMullen (Willow Tait), and Tabyana Ali (Trina Robinson), who posted, "YOU ARE GLOWING!!! I'm so excited for you." Tanisha Harper (Jordan Ashford) simply stated, "Beauty!!!" Former "GH" costars Briana Nicole Henry (ex-Jordan Ashford), Johnny Wactor (ex-Brando Corbin), and Briana Lane (ex-Brook Lynn Quartermaine) also gave their congrats.

Even actors from "The Young and the Restless," Brytni Sarpi (Elena Dawson) and Courtney Hope (Sally Spectra), shared their happiness for Mattson. One observant fan responded with, "So happy for you, and yes, we were all guessing that you were pregnant again. You wear it well, though. Wishing you a healthy, happy little baby girl" Another follower ecstatically wrote, "You look absolutely beautiful. I am so happy for you, your husband, and son. Congratulations!" An admirer lovingly replied, "We all knew because you truly 'glow' when you're pregnant. Congratulations on your new little love."

As the heartfelt responses to Mattson's announcement roll on, we'd also like to wish her congratulations!