Sure
Weight wise she is not there yet, I don't breed anything that is 18 months and under 1500 grams (I do breed older snake that are lighter but it's another discussion) but she can get there for this coming season.
When I used to have a season (I pretty much breed year round now), I would start on an heavier feeding schedule starting in september that would mean a small to medium rat every 5 days instead of every 7 days while the female eats.
At that rate a female can be ready by the end of the year, or january the next which is still considered this coming season.
Hope this helps.