i think all full time working mum will go through this cycle, especially the long period of maternity leave.
it takes awhile to adjust and of course you will go thru the cycle of missing and not bearing to leave your baby behind. And if you are breastfeeding it adds more a little more stress and for you to drop the latch sessions for pump sessions.
As time goes by, it will get better, you will find that you get into a new 'cycle' at work and home and become better @ juggling both.
dont't worry its natural i went thru that and called back 5 times the first few days i'm back. Worse still, in between i on video chat to see my girl - terrible.