uncontrollably snoring

For the past couple days my SO has not let me sleep at all during the night due to loud non stop snoring. usually he'll snore for a little then stop but now he goes on for hours. I've tried moving to the living room but I can still here him. It is driving me nutts! I haven't had a good night's rest on over a week! I'm almost 32 weeks pregnant and feel like this is greatly contributing to the fatigue I feel during the day. Any recommendations?