Bedtime help!

Catherine • Hi! I'm Catherine, I'm 29 & mummy to 3 little boys. Mason Elliott 26/03/16 💙 Ezra George 22/05/18 💚 Archie Emerson 02/07/20 💛

So my little boy will be 6 months on Saturday. We have a strict bedtime routine and he goes down like a dream. He usually wakes once or twice per night for a feed but will go down perfectly after eating. WELL for the past 3/4 nights he's been a completely different baby 🥴 He's now fighting bedtime but only takes him an extra 10 or so minutes to go down so I'm not too bothered about that. But when he wakes for a feed he will not go back to sleep unless he's laying on my chest. Every time I put him back in his crib he cries. I cannot sleep with him on my chest and I don't want to make this a habit so what do I do? I tried leaving him to cry for a few minutes to see if he would self settle but he just started screaming 😢 We have white noise playing throughout the night. I was hoping to move him into the big cot soon but I don't feel like I can now as he's so unsettled. Thankyou in advance for any advice!