Sounds close to what happened to me. I went in to see the OBGYN and they asked if they could put me on the short notice list if a cancellation came up, I said sure, thinking that I still had a while, I saw her on the Tues, got the call on the thursday just before Easter long weekend and went in the Wed for abdominal surgery which put me out for 6 weeks. So I had a bit more notice.