I had sex 2 days ago and had an orgasm yesterday,today we had sex and my husband told me that my vagina felt tight and different,what does it mean??

Probably nothing: If you haven't noticed anything different, probably this has nothing to do with you, only with your husband's sensations and feelings. I see no cause for worry unless either one of you has other symptoms like discharge, soreness, itching, and so on. In that case, I would recommend that both of you see a doctor or clinic for further evaluation.