6 month sleep regression

My baby is 28 weeks old, about 6.5 months now... the last 2 or 3 days have been rough! I rock and nurse him to sleep and he has typically been waking once or twice per night but recently it has been a lot more often. He is having trouble falling asleep and staying asleep. I'm having more trouble getting him into his crib. He is also starting to consolidate naps and having a longer one whereas he used to have mainly 45 min naps so I think that might be a part of the changes. Anybody else?? I know there is so much development happening right now so I'm not surprised. But it is tough! Trying to remember that "this too shall pass"