Is this sleep regression?

Audrey

My beautiful 3 month old girl was sleeping from 10pm -6am and suddenly a week ago she started sleeping at random times, waking up every two hours and her naps which she fights are only 30 minutes. She has also been extra clingy and I finally had been able to get her to fall asleep on her own for naps but now if I’m not with her she won’t nap. I go back to work in two weeks and I am freaking out from lack of sleep!!! I need advice , my husband thinks we should do some gentle sleep training Since most of the time that she is waking up it’s for comfort not eating. No comments about sleep training, I’m not against it just want an alternative.