Pregnancy after MS diagnosis

So when I had my first little boy he was around 4 months old when I started with my ms symptoms and a year later I was diagnosed. We’re hoping to have another baby sooner rather than later however I am worried as I do struggle with MS chronic fatigue, and I’m just worried about what it could do to my ms if I was to get pregnant and have another baby. Has anyone experienced pregnancy after diagnosis who really struggled with fatigue as a main symptom?? Or what did the pregnancy do to you? Also medication wise during pregnancy are you able to continue it?? I’m currently on Copaxone.