We have recently started having dh give our 12 week ds a bottle of ebm, and I go in another room, to pump for the next day's bottle. We do this between 5:00 and 6:00 pm, but ds cries and cries. Is this possibly because I am expressing and he can sense it, or is it just because he is not used to the bottle. For 2 days, we did a morning feed (weekend, dh home, able to), but the other three were evening, when dh back from work. Should I not express at same time, or do we simply need to persevere? Getting ready for work or occasional evening out, when not around to breastfeed. Advice appreciated from this first time mum. Thank you.