I Am 41 Years Old. I Was 23 When I

I am 41 years old. I was 23 when I hado a cone biopsy done. 11 almost 12 years ago I had my daughter and tubs tied. I was on bed rest with my daughter from three months in tell I gave birth to her. I have not been in a relationship in tell now. I am having movement in my stomach, I can feel heart beats and I am putting on weight. I am still having periods but they are early every month. This month is really early and heavey with clots. Is it possible to be pregnant? I done test and they say I'm not. That's what happen when I was pregnant with my daughter