My son was always a bit clingy. He is 5 and started school this past August. He also had to start before and after school daycare, but he isn't there more than an hour total every day, if he goes at all. I kid you not, my son cried every day, til around lunch time (10-11 or some time in there) til the middle/end of October. We got the first semester report and were told he was probably going to fail, and he had alot of learning to pick up. He is right on target now, depending on what it is, he's way ahead of class. It broke my heart every single day, but you just have to get a routine. Make her spend time with her dad, when you got out shopping. She isn't going to be happy, and likely, your husband may be a tad irritated that she was upset, perhaps the entire time, however, over time, she will get used to it. And one day, she's going to tell you that you can go and she'll be a big girl. Its not going to be easy. Had i known it was going to ba as hard as it was for my son, i would have started putting him in daycare or something atleast a year before. Daycare staff also know kids have to adjust on there own terms. And i would get a report every day from them tell me how he did. Its going to break your heart, but its going to be easier over time. Good luck!