My baby is 17 weeks old and has been exclusively breastfed since birth (apart from first 5days after birth, baby arrived 5wks early and had to be fed formula topped up with ebm). He is growing well and thriving but I'm not sure if he is getting enough milk as he doesn't always even go 3 hours between feeds. On somedays he will stretch longer between feeds and feeds much better as he is hungrier and ready for his feed. We have no routine and every day is completely different, generally I'm ok with this in the day as it's roughly feeding every 3 hours and a sleep about 1 and half to 2 hrs after waking. But by the evening he feeds around 4.30-5.30 and then it's anyone's guess. We had a few nights of him going down at 730ish then dream feed at 10ish then sleeping to 5/6 in morning. Up until last wk we had been waking him up at 10 and giving a bottle of ebm (taking anywhere brpetween 4 and 7 oz)but he was tired and difficult to wake and wasn't settling well til nearer midnight leaving us exhausted. The night after his vaccinations we didn't bother waking him at 10 and he slepl til 6 which was great, and so we have stopped getting him fully awake for feed at 10. This worked ok for a few nights. Now we're back to the situation we were at months ago where he is up and feeding around 5 and then whingy/windy/unsettled/ feeding on and off and overtired before finally going down exhausted about 10 or 11.Our plan of action for the evening "routine" changes every few days and no plan reliably works. I am thinking of changing to formula as I can't be confident that the reason he doesn't settle is that he has to feed to much just to get enough, and the more I think about it the more paranoid I get that he's not getting enough. I'm also worried I'm still breastfeeding because I'd feel guilty for stopping rather than because I think it's actually best for him, since hes just not content in the evenings. Do you think this sounds like a low supply problem, and we should try formula?also worried that once I do move to ff that will be the end of bf, but as I said want what's best for baby. Have tried gina routines, but as I'm breastfeeding can never be sure he's not fussing because he's hungry. Last night I made up a bottle of half aptamil half ebm at 930, but first tried him at the breast just before igave it to him and he feel asleep at the breast. God just realised how long this post is, sorry, but would appreciate any advice!