Now three months postpartum, singer Jessie James Decker opens up on the insecurities she’s had with her post-baby body. Decker and her husband, former NFL wide receiver Eric Decker, welcomed their fourth child on Feb. 9. The singer has never shied away from being open and transparent about her life on social media, and her pregnancy journey is no different. “I’ll be honest I really didn’t wanna post any of these kittenish swim photos because I weigh 30 pounds more right now than I did last year this time,” the business owner shares with a photo of her in a bright orange bikini. “Yes, I know I …