DS is 15.5 weeks. Managed exclusive BF till 9 weeks, then introduced a bottle of formula for one night feed so DH could give me a break - DS was only waking once or twice in the night after his 10:30pm feed, but was taking at least an hour to settle afterwards every time, and I was going quietly insane.
I'm not sure if he's currently going through 4 month growth spurt, or teething, or what, but he's waking a bit more in the night (at least twice after 10:30 feed), and again taking a while to settle after feeding. He's also feeding a little bit more in the day, although not tons - previously feeding 3 hourly, now having a short (20 min) feed in between the big three hourly ones.
He's still only having the one bottle feed, as I figured that if it was a growth spurt I should feed him when he demands it to up my supply. However, the extra feeds day and night are getting a bit painful and very depressing - he feeds for 45 mins for his big feeds, so we are doing very little else. The other problem is that his sleep appears to be worse (harder to get to sleep for naps, shorter naps, but more overtired and grizzly), and we were wondering whether because he is all but asleep when he feeds, he is not tired enough to nap, but still needs it, iykwim.
DP asked, genuinely, if there was any reason not to top up with formula after each BF rather than bothering to up my supply. Obviously since DS is already having a bottle, the whole virgin gut thing isn't a reason, and as long as I continue BFing at all he will get immunity I assume?
I am happy (well, not happy, but willing!) to continue with the more frequent feeds if it's going to be better for DS, but I am honestly wondering whether it is. I have no intention of BFing beyond 6 months - might go to 8 months if it takes that long to slowly cut down the feeds, but certainly not committed to BFing for the long term - so don't need my supply to keep up indefinitely.
Rambly post, sorry! Any thoughts appreciated.