possibly pregnant

so i got my period June 27 and it ended july 2 and this has been my usual period and I have had my period for about 3 years now I'm 16 then on july 19 from July 23 I was at my boyfriends for 5 days and I'm not on birth control and we had unprotected sex and he didn't pull out me and him have been together for 3 years and I missed my period and I am about 4 weeks late and I took a pregnancy test August 7 and its been two weeks while I have had two positives and I have had nothing but white discharge need ur opinion if u think I am pregnant these are the test