Was this rape?

Okay so my boyfriend and I were drinking. I got blackout drunk and passed out sleeping. I remember bits and pieces of us having sex....it hurt....I didn’t say anything because I was pretty much asleep. I woke up in SO much pain down there. Asked him if he did anything to me last night and he said no and I told him well why does it hurt down there and he laughed and said “I’m joking. We had sex”. Ever since then I’ve been in so much pain and have been to the ER twice, due to bleeding a lot (it’s not my period I got that on the 21st. 4 days long very normal) and severe cramps. Was this rape? I’m so confused and feel so traumatized...