Ready for second baby.

harley ♊ 🥀⭐🦋♥🌙 • I`m 28 year old mother and who have a 8 year old. And number 2 own it's way!
My son is 3 years old and I been really want to have another baby for a while. By me being a diabetic it been hard. But i see a lot of improvement in myself. Should I have my second one and will medica. Hurt the baby?