Idk what is going on. I have been having some symptoms of pregnancy. I have been waking up in the…

Idk what is going on. I have been having some symptoms of pregnancy. I have been waking up in the middle of the night to go pee and I have been getting headaches and random nausea. And my breasts are really painful but I can't be pregnant right I had a period last month and I have taken tests and they have all been negative