http://asd.gsfc.nasa.gov/blueshift/index.php/2015/07/22/how-many-stars-in-the-milky-way/
Specifically, this paragraph:
"There are different models for estimating the number of stars in the Milky Way and the answers they give differ depending on what is used as the average mass of a star. The most common answer seems to be that there are 100 billion stars in the Milky Way on the low-end and 400 billion on the high end. But I’ve seen even higher numbers thrown around."
Now, this does mean I stand somewhat corrected, in that I overestimated the current high end estimations. But here, even the low-end is significantly higher than merely millions.