help me out please

I had sex a week ago for the very first time. He is 19 I'm 16 he said he didn't have a condom but was with a girl for 6 years never used a condom and never got her pregnant so I thought we would be ok. The first time we had sex he pulled out and then the second time (on a different occasion) he pulled out again with no condom on. I was suppose to start my period this week. How would I know if I'm pregnant or how can I have an abortion. My parents can't know. Help..