Help me find a historical romance that I read in 2008

[Penny]

Hi, I am looking for a book I read in 2008 I do not remember much except that the heroine was seventeen she ended up in a ship and became the mistress or wife of the captain, I remember he takes her virginity in the captains cabin. They are at sea for months and she falls pregnant during that time. there is a bothersome nephew some where in the background who is not happy about the union. the heroine was meek and beautiful but I cant recall her name, I think the hero was called Dominic.

[Lobstergirl, au gratin]

Please, always put plot details in your header in addition to genre. This helps searchers locate your book.