false positive?

April
So i am very confused! I was three days late on my period and shiwing all sorts of signs! A huge appetite increase, sore breasts and nipples, left-sided cramps, heat flashes, etc. i took a test and it was positive! After that, i had three negative tests. Yesterday i was officially a week late, when i started bleeding that evening. Seems like i'm on my period because im still bleeding this morning. Is it possible i had a false positive? And what about my crazy appetite? Im so disappointed, had to delete the <a href="https://play.google.com/store/apps/details?id=com.glow.android.nurture">Nurture</a> app since i dont seem to need it. Anyone know why i got a positive test result tho?