Anyone ever been pregnant/thought they where with no symptoms?

Last time I had was with my bf at the time but now were not talking for the moment. When we had it was like 5 days after my period in june,so I came on my period in july which was normal,but this month I still feel normal besides some times after I eat I feel sick,and If I go out to like a bar and I go out on the dance floor to dance I feel sick to me stomach and when I take nap I sleep for like 4 or 5 hours but still tired when I wake up. But now today my left titie keeps hurting like somebody graded it to hard or pinched my nipple but june was the last time I had .Im thinking I should take a HTP to be sure because Idk why I keep feeling like this.