I was tracking my ovulation with stips . My last period was 13/11 and I ovulated 3/12 next period was due 10/12 today is the 15/12 still no period. Did a home test a very very faint test line came up went to the doctors for a blood test came back neg but was only 9dpo . I feel pregnant . Could I still be pregnant or did I not ovulate right ??