Im still not sure...

Poison
This was my pregnancy test may 20th. Over that weekend i literally took 5 more tests and they all came back negative. I've never had a positive test in my life. My husband and I have struggled with infertility for the last 8 years so this hit us hard. Ive been afraid to take another test for fear of confirming that im not pregnant. March was my last period. I spotted in april for 3 days, then i spotted again this month for 4 days. Is there a possibility that the other tests were false negatives? I heard that false positives are rare. Help!