Pregnant? 😳

Hi everyone,
I had a tubal ligation 11 yrs ago. Funny thing is my period is late and I'm having pregnancy symptoms. I did 4 pregnancy home test and all came out negative. I'm not surprise about because with my first babe all my pregnancy test plus blood test came out negative and I was 3 months pregnant already. I'm trying to scratch out all my list everything that may be happening to me that can have same symptoms. I have heard of woman getting pregnant after yrs of having a tubal ligation What you guys think?Β