Hi Maddie, and welcome!
Pellets that have seeds, nuts, and dried bits in them should really be avoided. They are loaded with sugars, and seeds are a choking hazard. Wheat should really be avoided as well. Pigs are herbivores and require a diet of grass hay, leafy greens, veggies, herbs, and occassional fruit. A lot of companies like to toss wheat, and oats etc in the food to act as fillers, but their digestive systems aren't made to tolerate things like that.
Your piggies would appreciate fresh herbs and leafy lettuces much more. Being pregnant, Suki needs a diet higher in calcium than Rosco does... It would do her well to slip her some extra calcium rich things during lap time like kale, parsley, dandelions.
Are Suki and Rosco opposite sex cagemates?