The early weeks are really hard!
With breastfeeding, it's best to go straight to the experts. You can call the ABA any time for advice and support. Your hospital may also have lactation consultants available to you. Regular midwives, nurses, GPs etc often know very little about breastfeeding and are generally not the best people to get help from.

A weight loss is always a worry for mums
How many wet and dirty nappies is she having? That's a good indicator of how much milk they are getting also.