Should I tell him??

Last night I was looking through my husbands wallet knowing he had a baggie with coke somewhere in there since he uses it sometimes when he drink. I tend to throw it out when I see he’s acting different and notice he’s using drugs so I got his wallet without him knowing went to the restroom and looked for the baggie. When I got it out I was about to throw it but got curious and tried it and later in the night went back and did it again 😔 I’m so upset I did but I was curious as to why he used it now I’m scared and I don’t know if I should tell my husband I used it twice before I threw it out. I’m 100% aware that it’s not ok at all and we all make mistakes so now I have no idea what to do