I'm going to preface this with yes, I know I was stupid.

So my gf (f20) and i (m21) had sex. Unprotected. Foolish of me but this is where my question comes in.

I did pull out (granted I know this isn't 100% and isn't suitable ) but after I ejaculated elsewhere, after about a minute we went back it. Pulled out again.

I'm concerned- what could the probability be that she's pregnant? We talked about what we would do if she was, but I'm concerned because I'm nowhere near close to ready (as I said I was stupid). She mentioned she (At the time) she was at the highest chance in her cycle. So, reddit.. what's your advice? This was about 5 days ago. I ask because she's been sick (nausea, vomiting) and i do under stand some of this is related to implantation but I want to know if I'm overeacting.

Overall questions:

If she is, how does the dynamic in a relationship change with this? We don't live together

How likely is it? (Ballpark maybe, if I'm overeacting )

And again, lesson Learned.. not gonna be foolish again. Just carry condoms around.