Pregnancy Test Negatives

I need help ladies.

I’m late 12 days on my period and that is not like me at all. I’ve never had a late period. My boyfriend and I have been together for 5 years. It wasn’t planned for me to get pregnant. All the tests I have taken have came up negative. I just want to come on here and ask how many ladies have had false negatives and still was pregnant? I need to knoww please tell me your opinions and stories. Much appreciated❤️ hope everyone is doing okay and being safe during these times.