Could I be pregnant ?

Before i start.....I’m going to take a test later so my periods about 10 days late. I was spotting, but I saw blood so I didnt think it was implantation bleeding. I took 2 pregnancy test when it was about 4 to 6 days late and both came out negative so I gave up and assumed that my hormones were off balanced. When I woke up today and yesterday 10 &11 days late I felt very nauseous and even threw up immediately after waking up. I’ve also been having bad cramping mostly at

night after work. What are your thoughts?