Need clarification

I am on day 44 after my period first day. I have checked on day 26 and 36 respectively and got negative results in pregnancy. Scared to see another negative though. I am having headaches, vomitting and tiredness. Even mild crampings on right bottom of belly. Have little white discharges everyday too.. Haven't felt change in breast. Is there a chance that I am pregnant? TTC for 11 months.