How To Prevent Measles?

Hi,

I'm 25 yrs old female(5'5" and 53 kgs) and currently in bangalore. My roommate has ben suffering from fever and cough for the last 2 weeks and yesterday after tests it was confirmed she's suffering from measles.

I had been sharing the same room as hers all this time and will be doing another 4 days. I never had measles.

Can I take the MMR vaccine now and to be safe, or is it too late?