I have left both my babies to cry for short periods at times, more so when I had Grace as there were times when I simply had no choice but to let her cry for a couple of minutes while I attended to Harry or because I was busy doing something, like getting her bottle ready or going to the toilet! Even now there are times when she cries and I just can't get to her straight away. If she starts getting really upset when in bed I go to her straight away, or as fast as I can, and pick her up and give her a cuddle and hold her until she is relaxed then put her back in bed. Usually that one cuddle is enough - she is reassured that I will come to her and so she relaxes and goes to sleep.

I don't think there is anything wrong with what you are doing - I would say 2 minutes is a good period of time as it gives you enough time to establish whether she will settle by herself or whether she really needs you to come to her. Don't feel bad, there are always going to be times when you can't get to her straight away!