iOS Label ellipsis cuts off early

Is there a way to change where the label text gets ellipsized? I have a title label:

var tab1_titleBar_page_label = Ti.UI.createLabel({
    width: Ti.UI.FILL,
    height: '20dip',
    top: '10dip',
    left: '47dip',
    right: '47dip',
    color: color_title,
    textAlign: Ti.UI.TEXT_ALIGNMENT_CENTER,
    font: {
        fontSize: '16dip',
        fontWeight: 'bold'
    },
    text: 'Pregnancy Related Hypertension'
});

The problem is - the label gets ellipsized too early:

This is how it looks currently (white border is the outline of the label container):
http://i.imgur.com/ZN0uSSR.png

This is how it should look:
http://i.imgur.com/TkigmtF.png

As you can see, currently it gets cut off half way through the Related word. I'd rather it gets cut off during the Hypertension word because the container is wide enough to fit it.

Why doesn't it fill the entire container when ellipsizing the label? It seems like it randomly chooses where to ellipsize the text because some titles will fill all of the container; while others, like this one, will ellipsize way too early. It seems to make no sense, shouldn't it fill the container as much as it can before getting cut off?

Cheers, Ben