is 6 month sleep regression a thing?

Kacey
Lord I am one exhausted momma. My son turned 6 months on the 21st, and ever since he was 4 months, he has slept like a champ! Usually 8-10 hour stretches. A week ago he started waking up like every 2 hours (if I'm lucky) and will only sleep if he's laying on me. His naps have also gone from at least an hour to 15-20 minutes. He did cut two teeth yesterday. Is this teething? I'm a ftm and just so caught off guard by this. Anything I can do? We need some sleep!