Whether you are in love with him or not, you should ask yourself whether you are willing to work to make the relationship work, and remain in love with him. Talk to him about how you are feeling, seek counseling , and try to rekindle the spark.
Sometimes I don't know if I am in love with mine, either. I think that's normal. We all have our good and bad days, weeks, months or years! Have to be willing to work at it, and it will be okay. Do you want to work for it?
Probably, yes. All marriages have rough spots. If you are starting to feel less "in love" you should try doing something as a couple. Take a romantic vacation or do something spontaneous. Also, you should consider marriage counseling. There are professionals out there who can help you sort through your feelings.
No, you are not still in love with your husband. You wouldn't have to ask if you were, unless you were trying to determine whether or not an anonymous outside source knows whether or not you're in love with your husband.
You are the only one that can answer that question. Every relationship has it ups and downs, however. It is normal for a marriage to have some rough spots. It is normal for it to sometimes get tiresome or boring. Only you can know if and when it crosses the line into falling out of love, however.
Only you know if you are still in love with him. If you are but things aren't working well try to talk things out or go to a marraige counsler. If you are not in love with him its best if you go your own way. It will be better for both of you in the end.