Questions & Answers about El embarazo de mi hermana va bien.
Embarazo looks like "embarrassment." Is this a false friend?
How do the related adjectives for "pregnant" and "embarrassing" work with ser and estar?
Why use the simple present va instead of the progressive está yendo for "is going"?
While está yendo bien is perfectly understood, Spanish relies heavily on the simple present tense to talk about ongoing processes. Va bien is the most natural, everyday way to say "it is going well."