Whitney Port “took a little breather” from attempting to have a baby after a string of devastating losses. The 39-year-old reality star had three miscarriages and a chemical pregnancy before she and husband Tim Rosenman decided to opt for surrogacy, only for their two attempts at embryo transfer to end in losses too, prompting the couple to put their plans to give six-year-old son Sonny a sibling on hold so the ‘Hills’ alumni could focus on herself. Whitney told E! News: “I took a little breather from the fertility situation. “I decided to take a few months off from thinking about it and talki…