Tiptoes (2003) on Netflix

Carol is an artist, Steven trains firefighters. They've lived together for months and plan to marry soon, except that Steve's left out an important detail about himself and his chromosomes: his parents, twin brother, and many of his relatives are dwarfs. Carol learns this when Steve's brother Rolfe drops by, the day after she discovers she's pregnant. Why hasn't he told her about his family? She calls on them, and they take her to their hearts. But tensions mount between the lovers as she believes he's ambivalent and angry about his family, and he thinks she's romanticizing the life and many health problems of little people. Can they get over these emotional barriers?