I have DD17, my DH has DD13 and DD11.
We have been together 8 years, married 6. No kids together.
DH has always wanted one but I've never been that bothered. Around 2yrs ago I came off the pill and we took no precautions for around 9 months but I didn't fall so potentially it's not something that would've happened naturally anyway.
DH was diagnosed with cancer at the end of last year and is currently undergoing chemo, the prognosis is really good and he is expected to make a full recovery (🙏🏼)
Before chemo started he gave a sperm sample which has been frozen, this is standard procedure as the chemo would probably have made him infertile now.
Once he is well (hopefully mid-end of this year) we are considering having IVF to have a baby.
It would kind of be a celebratory baby I guess due to DH illness. He is really for it but I can't help but think hmmmm I'm not really sure. My DD is nearly out to university. Do i really want to start all over again?! On the other hand, it would be amazing to have a baby together and this last year has certainly taught us how important family is etc etc.
DH is a wonderful father and step dad and is very hands on with all three of our children.
Could I ask for your opinions? Would you do it if you were me?
I say hypothetical because obviously I'm under no illusion that we would have a successful pregnancy. I have close family who have been going through IVF for years. I also have seen how difficult it was for her going through it, whereas DH has already played his part by 'depositing' in a cup 
Oh and I'm 38