My DS is 21 weeks old and we have been v lucky with him. he has slept from 7-7 from 12 weeks and during the day feeds every 3 hours (give or take). He has loads of wet and dirty nappies and is tracking on the 75th centile so no concerns there. His feeding was sometimes only 10 mins so I introduced a bottle of express bm before his goes to bed (7oz) so i know what he is getting for at least one feed. I pump before I go to bed to get this express for the next day.
In the last week he seems a lot more hungry and has started by the 5 feed to get frustrated - pull off and cry and when I pump before I go to bed im only getting 2oz as opposed to 8oz before.
He is also waking up at 4 am for a feed now (before we would have to wake him) - im not complaining as we have had it so good but im worried about my supply. Im not sure i have enough to satisfy him so suspect i may have to go down the formula route. Clealy he is going through some growth spurt but perhaps my supply has been affected by him sleeping through the night for the last few months?
Any advice would be greatly appreciated.