How much expressed milk to give a 7 week old

[Eminybob]

I've been ebf my nearly 7 week old, and have decided to try expressing so DP can do a night feed at the weekend.

I know that the amount DS will take will vary depending on how hungry he is,but as a guide how much should I express for a feed?

He usually feeds for about 15-20 mins if this is any sort of guide?

Thanks.

I can't link on my phone but I think that there is guidance on kellymom?

Thank you, I've found it.

There's a milk calculator on kellymom but I think the general guideline is 1-1.5oz an hour. So if feeds are every 2 hours, 2-3oz. If every 3 hours, 3-4.5oz.