I don't have morning sickness i only vomited once after my last period but now i have sore breast and lower back pains i eat as i usually do can it be because my period is coming or can it be that i'm pregnant and i'm tipe 1 diabetic?

No: Pain is not normal. It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. Regular exercise may help. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. See a doctor.