Pregnancy, Tysabri & the dark wild horse (that is MS)

Hello, I’m new on here! I was wondering if anyone could share their experiences of pregnancy and breastfeeding while on Tysabri? I would love to have one last child (I have 2 under 5 lol) but I’ve always loved the idea of a big family. I’ve decided 3 is the number.. other half is so worried about me. I am worried about the baby & loosing sight in my only working eye. Anyone advice? Should I avoid? I would like to breastfeed after birth but want to avoid Tysabri for at least 3 months after birth. I was diagnosed Jan 20th 2021, I was afraid of dmds and eventually went on Tysabri in June which I am very grateful for now. I’m just concerned about pregnancy breastfeeding as impact on the baby in and out of the womb is not really confidently known. It’s a shot in the dark “yeah they should be fine” sort of answer I get. What are your thoughts?