BFP or false positive?

Shannon • Mother of Zayah Jhené born 11/1/18. She is truly a blessing from God.
I was supposed to start my period today, but I haven't, so I decided to test. I took 2 and they are very clear positives but is there any chance this could be 2 false positives? My fiancé has seen the tests and he is sooo excited, but if these are false, it would break our hearts. Please help.