Uy, this is a really serious medical situation, mama, please talk to your oncologist and OB-GYN right away if this is about you or someone you know. They need to work together on this one, kasi it's so important for both mama and baby.
I haven't heard of anyone in our community going through this, but I know it's possible with the right doctors, just make sure you have a team that's coordinating your care closely. Sending strength to you or whoever needs it.