What Does Pregnancy Symptom When Having Periods Indicate?

hi... I m having pregnancy symptoms but got my period. The blood is bright red and contains clots. Symptoms I m experiencing : nausea, vomitting, fatique, mood swings, tender breasts, lower back pain, pain in my lower abdomen and frequent urination. I have done a few homemade pregnancy tests... The sugar test and the dettol test. The sugar didn t disolve in my urine and there was what seemed like oil in the dettol. I did a home pregnancy kit on Monday but it was negative. Could I be pregnant?