DS1 is 2yrs1m. He has always had equally close relationships with us both - DH is at home with him 2 days a week and is a fully involved Dad - but gone through short phases of preferring one of us but it has always settled quickly.
Right now, everything has to be Mummy though, it's getting very wearing (physically as much as anything as I have SPD and he wants me to carry him, dress him, change his nappies etc) and we aren't sure how much to allow him to dictate when we are both around (often he doesn't have a choice as I work shifts).
He has started at a new nursery a month ago which seems to have ramped up the Mummy obsession and also I am 27 weeks with number 2... So maybe those are playing a part.
DH has gone to put him down for his nap and I can hear he is getting hysterical calling for Mummy.
All advice appreciated.