FIL has cancer, diagnosed 4 weeks ago as untreatable and there's nothing they can do, he was given 4-8 months.
We were due to get married in April but obviously moved the wedding forward as fast as we could, which was to this weekend.
Problem is, in the last 48 hours FIL has gone from fully functioning to bed bound and a bit confused. He's lost the strength in his legs completely and he's very weak.
DP wants the wedding to go ahead but I'm not sure if we should cancel?
FIL probably won't be well enough to attend and the whole reason for moving it forward was so he could be there 
Haven't spoken to MIL about it as they have much much more important things to think about, so should we cancel or go ahead? What if he doesn't make it? How do you even cancel a wedding at this stage?
Help