I think I got a false positive?

so my first day of my last period was on may 24 2017 and I took a test on the 15th of June it was positive. at the 15th I was 8 days before my missed period iv had some nausea back ache and light cramping lots of gurgling and really gassy and bloating and at 1 30 this morning I woke up sick nauseated and rrally bad cramps then the cramps stopped being bad and now just light nausea with lots of gurgling and bloating 2 days till my missed period. I took another test 3 to 4 days before my missed period but it was negative but maybe that is do to now having enuff hcg in my system yet I really want that 2nd BFP but I'm so nervous it was just a mess up or something on the test any opinions plz would be great thank u much love ??