can't have children, considering adoption

I was 30 when I was initially diagnosed (stage III)...had just gotten engaged and had my whole life in front of me.  After a year and half of chemo, lumpectomy, more chemo, time off to get married, radiation and then more chemo I was finally done and put on Tamoxifen.  The chemo had put me into menopause so my husband and I were investigating adoption.  It was 3 years since treatment ended and we thought we were in the clear.  We had just finished our home study when we found out that I had mets to my liver.  Just one lesion but it meant we had to put our adoption on hold.  After a year of chemo (taxol and avastin) I was considered NED.  I was anxious to start the adoption process again but my husband wanted to wait awhile.  My latest diagnoses took it's toll and he was afraid of being a single dad.  After 9 months of living "cancer free" we found 4 more lesions on my liver during one of my usual scans.  We knew it was coming back but thought I would have a little longer.  I'm back on chemo now (abraxane) and the plan is to do a liver resection following 3 rounds of treatment.  I know that this isn't curable now but I do believe I can live a long time with this disease.  Maybe by then they will come up with a cure - it's all about buying time.   Here's the thing, I still want to proceed with adoption.  Being a mother is something that I've alway wanted.  I hate that this disease has taken away so much of my life and this isn't something I want to miss out on.  I've talked with some adoption agencies...it seems we would have a hard time getting approved internationally but domestically we don't have to disclose my diagnoses to the birth-mother.  That seems kind of sneaky to me and I'm not sure I have the time to wait for domestic adoption. I'm trying not to be selfish. I know it's a lot to ask of my husband to do this for me knowing that I may not be here to help him raise our child.  But no one knows how long any of us have.  I could live with this for a long time. 

So, is there anyone out there who has been in a similar situation?  Any insights on adoption?  Has anyone else made the decision to have children while living with this diagnoses?  Any mothers who already had children before they were diagnosed? 

It's so nice to have a place like this to ask these questions of people in similar situations.  Thanks for your help!

mpd