i went to my dr on friday as i am 21 days late from my period and been trying for a baby for 1 year. i have had 2 negative home pregnancy tests. The dr said from symptoms i am pregnant and i have for to believe what my body is telling me. He has told me to take a test this week and another next week (fridays) and if still negative to go back and i will need a scan. is this common? should i be believing i am pregnant?