The most important thing is to try to keep the silhouette elongated, without flattening much and so check out the suggestions of looks:
Long dresses for pregnant women
According to FUN-WIKI, The long models are great alternatives, models that go to the ground are great alternatives to you that are more little belly, and may be a take it fall, from a single shoulder or models with necklines on the back are the best tips.
Short party dresses for pregnant women
Options up to the knee are great in a model longue, enjoying more free models with options in models hopefully fall, with or without sleeve and still with varied fabrics that may be the suggestion to give more prominence to the belly and also for a super charming look and more could be hustle.
Not the first choices, but with the right jumpsuit you can use at a wedding party, baptism and graduation, of course these models are more for invited who are not attending the ceremony for they are gorgeous too.