Did sleep regression start really early for anyone?

LO is 14 weeks and used to sleep 8-9 hours in one stretch at night. Since 2 weeks ago his night time sleeping has taken a turn for the worst and he started waking every hour or so after the first night feed. The past 3 days it's become even worse, bed at 8pm, up at 9.30, 10.30, 2, and then every hour after that. Can this be sleep regression at 3 months rather than 4?

I always offer him the boob when he wakes in case
he is hungry, but he usually falls asleep again within minutes so I don't think it's a growth spurt. He used to only wake at night when he was hungry, but now he wakes just to lie there with his eyes open and then after 5 or 10 mins he cries as he's never been able to settle himself to sleep. I'm worried that I'm making a bad habit worse with feeding him to sleep every time he wakes even when I know he's not hungry, but that's the only way he knows how to sleep at night so I'm at a loss with what else to do. I tried cosleeping last night but he hasn't been a fan since he was a newborn, makes him more restless and he just wants to use me as a human dummy all night.

He is also awful at sleeping during the day, but that's nothing new.

 

Yeah i really think the inability to self settle has a lot to do with it, and he's becoming even harder to settle now. OH keeps telling me not to worry about bad habits too much now, and if he's not improving on self settling by 6 months we can try sleep training if we feel we need to.