Is it normal??

So ladies I need some help answering my question. My fiance and I have been together almost a year now and I lost my virginity to him and we normally have sex an average of 2 or 3 times a week. Well the last week I haven't been in the mood to have sex or even let him touch when he is in the mood. Is that normal. I also haven't felt sexy or even pretty for that time either. Is this normal?