Dude - it hasn't even been a year of dating yet so just chill. If the doctor expects you to propose in less than a year, then she's not the one for you. Seriously - as divorced adults, you should both want to take your time deciding about each other and less than a year is just way too short a time, no matter how well things have been going. It's not like anybody's biological clock is ticking or anything.
The stats are not in favor for those of us who rush into the next marriage. If you're planning to spend the rest of your lives together, then you have all the time in the world.
Just my $.02
M 20+ T25+ S ~15.5 (BD) BD 4/6/15 D 12/23/16
"Someone I loved once gave me A box full of darkness. It took me years to understand, That this too, was a gift." ~ Mary Oliver