three talaqs

I have been married to my husband 3 years back , i was a non-muslim before and so i converted to Islam on the day I got married. about 6 months ago if i can remember well, i had an argument with my husband over the phone and he unintentionally pronounced talaq to me. when he gave me talaq, i did not know what it is exactly, but I knew it has same meaning as divorce, and i just took it for granted, because I knew he was just angry, he will call me again and say sorry. i am currently studying and my husband visit me a lot, we have been engaging into sexual intercourses and spending all time together. Since i have been learning a lot about Islam, i now know what talaq means. Today when I asked my husband if he still remember saying talaq to me, he said yes, but none of us remember how many times he pronounced the talaq. Both of us think it was said three times, and when I asked him if is valid, he said no because he did not mean it, it was just said out of anger, and there was no witness. I am feeling very terrible, and I started crying everytime I think about this. We love each other a lot and we have a daughter together. Does this mean we are completely divorced? How do we repair this mess since we have been seeing each other after talaq, which means I have been haram to him all this time. I cannot even study, please help me, now that I know, what is the way forward?