Trying to conceive

Patient: My husband and i have recently decided to try and have children. I’m 22 years old and i quit taking my birth control the first week of October.. My last “normal” period began on September 25. I had another period October 10.. I don’t know if i had a period because my body was releasing an egg due to the fact that i was no longer on birth control or what.. We had sex a week before and a week after my “abnormal” period.. According to my ovulation, I should have been at my highest peak on the 24 of October.. I have several pregnancy symptoms, but i’ve had two negative pregnancy tests. I should have had another period last week but it still hasn’t came.. Is it possible that i am pregnant or is it all in my head?