6 month old milk intake

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Everyone has been so helpful before so here I am again, asking for help and advice (nervous FTM to rainbow baby)

We are at the very beginning of weaning so at the moment food intake is nothing which I know is ok and will be this way for a bit and milk is main source of nutrition.

We had been on 3 hourly feeds (formula fed) but LO was fussing on the bottle a lot and didn't seem hungry so moved to 4 hourly over the last few days. This seems better although he can still fuss a bit, he is now taking 8oz bottles in one feed. The problem is I'm not convinced he is getting enough milk
6:45 wake
7:15 bottle (8oz)
8:30ish nap for 45 minutes
11:15 bottle (8oz)
11:45/12:00 nap for 90 minutes
15:00 bottle (usually irritable from 14:30 so think hungry) (8oz)
15:30 nap for 30/45 minutes
17:00 food - veg puree (v.early weaning)
18:30 bath
18:45 bottle (8oz or just under)
19:00 sleep

He is currently waking a few times a night for comfort and we are trying to shush and pat, he has one feed usually but maybe only 2-3oz. I'm happy to sleep Train but scared in case he is hungry and don't want to deprive him.

The problem I have is I'm not sure where to reintroduce a bottle whilst also keeping time for solids because I've read solids should be separate to milk to allow them to try the solids etc but I don't think he is getting enough milk. We tried a teat size up (on size 2 now) but he was just sick with it. He is small baby but has moved a centile sice birth, still c.9th centile we think.
I'm just feeling lost and I know most people will say on demand but I struggle with that (struggle with cues) and find routine helps us all. Grateful for any advice
Thank you

Is he finishing the bottles? If so I would offer a bit more and see if he's interested. Also if hungry at the 14:30 mark offer then, you could always offer a top up between then and the last feed if needed?

Food should be offered 30 to 60 mins after milk. As the PP said babies should never finish a full bottle, they should be deciding when they have had enough. If they finish the full bottle then you need to offer more milk.

Please don't sleep train him at 6 months, especially if he's so little. He really could do with those calories at night at the moment.

Also agree with others that solids should be roughly an hour after milk too.

Is there a reason that you're only offering vegetable purée for the food as well? Does he have the opportunity to have any finger foods?

If you are struggling with schedules, there's a really handy guide published by the Caroline Walker Trust which covers things like first foods, portion sizes and sample menus. You'd probably need from page 13

Thanks all, when he finishes a bottle I do offer more and he is having finger food with the puree but we are literally on day 4 so not very far into it!

Tried to offer an additional feed today and he didn't fancy it and in the end has had even less milk today, going to try and adjust again tomorrow and see what we can do for him.

Thanks for advice and help