Only you will know if you were ready, but if you feel comfortable and happy about it, I'd say you were.

I'd guess that you are just feeling a bit strange because you've finally had 'the big experience'. I think everybody feels a bit weird after their first time. We have so many expectations about sex, and there is so much anticipation, that people often feel a bit let down when they actually experience it for the first time.

I wouldn't worry too much about the strange feelings you have. That is natural and it will pass.

You are assimilating sex and deciding whether you like it or not. Sometimes this coming to grips can take a while especially if you're battling feelings of guilt which it seems you are when you state you're trying to make this a mistake and yet we've been together - yadda yadda yadda. Stop needing to justify your actions. It is not that big of a deal. There's nothing inherently wrong with not being a virgin. Give yourself permission to enjoy sex.

You are being a woman. This is a significant event for all of us. A shrink would call it dissonance reduction. A marketer would call it buyers' remorse. We do it and we cannot undo it. I never a woman who did not go through this - in most cases with an "omigod-I-think-I-am-pregnant." We were all virgin once; 95% of us change that status at some point.

Take Evil's advice.

You're welcome!