Should I keep trying?

I met this really cool girl this weekend and we seemed to hit it off pretty well, talked for quite a bit, and I made her laugh and what not. I got her phone number and she got mine.

I called her to come to a party my roommates and I threw , but she didn’t answer my message. She did call later that night ,but I wasn’t near my phone. It was already too late to call again that night, so I called her today and there was no answer, nor an attempt at reaching me again.

Should I keep trying or can I just not take a hint?

I just don’t know.