Sebastian Stan and Annabelle Wallis just stepped out for the first time since their baby news dropped … and yeah, they’re looking very good together!

Pregnant Annabelle was glowing during their NYC stroll Thursday — rocking a flowing black dress that skimmed her bump, while holding hands with Sebastian as they soaked up the day.

The pair were casually making their way to a restaurant … and after four years together, their ease around each other is evident.

TMZ broke the pregnancy news last month — and it’s all happening during a packed time for both. Sebastian’s busy hyping his next Marvel outing, “Avengers: Doomsday,” while Annabelle’s also got a slate of projects lined up for release.