SHOULD I FEEL BAD ?!

So a couple days ago was my 21st birthday. I had a hotel room & was celebrating with a couple friends , of course there was drinking involved lol. But anyway fast forward , this guy I’ve been liking & wanting for a while was there we talked thru the night then we had a alone talk outside & he decided to spend the night. (Mind you we both have been drinking but I drunk more) so later on towards the end of the night my sister & friend left to go to the store so it was just me & him there all I remember was us talking & he told me how he was feeling me we ended up having sex but I only remember bits & pieces of it. I remember him saying something about taking a plan b but I guess I passed out That morning when we were on the ride home my sister & friend was like y’all really got it in last night I asked them what they meant & they said me & him had sex like 3 times but I remember none of that then I asked him & he said it was true then asked me to stop to the store so he could buy me a plan B. I kind of feel like I was taken advantage of & he seriously didn’t leave the car until I took the plan B & told me to text him just Incase I threw it up because I didn’t feel well that morning. Is it bad that I feel taken advantage of & sad ‼️???? SORRY ITS SO LONG.