Hi, sorry to read about your mum. I am in a similar situation my mum got diagnosed just before christmas last year. She had surgery then 8 weeks of treatment. Unfortunately her tumour has progressed and they can't do anymore. It's a terrible disease but it seems to be very individual on how it progresses and at what speed.
having been through it all I would say just start enjoying your time together, making memories and being there. They re scan a fair bit later after treatment as the radiation takes a while after treatment to work (if that makes sense) it's going to be a tough road ahead and I feel for you with a young child and being pregnant. I too have young children. But keep positive and just live life together whilst you can. Try not to read too much on the internet, it can be a minefield of information which really can't give you any answers. Yes be prepared for what inevitably will come further down the line but just also keep a positive mindset that it won't be soon. 

Thank you so much for your response! I'm glad that I'm not the only one in this difficult situation! I'm sorry to hear about your mum too, its very difficult watching someone you love struggle! After mums treatment finished she felt awful so we haven't been able to do much yet other than cosy up on the sofa (which means more to me than anything). It's a hard reality to face but she beings chemo again this week and come July we will know from the scan how things are looking! We will continue to make the most of whatever time we have! 

Thank you so much for your response! I'm glad that I'm not the only one in this difficult situation! I'm sorry to hear about your mum too, its very difficult watching someone you love struggle! After mums treatment finished she felt awful so we haven't been able to do much yet other than cosy up on the sofa (which means more to me than anything). It's a hard reality to face but she beings chemo again this week and come July we will know from the scan how things are looking! We will continue to make the most of whatever time we have!