I am in need of some advice. My period is one week late as of yesterday. I have taken 5 pregnancy tests (clear blue & dollar store brands) but all have come back negative. I have been feeling nauseous for about 2 weeks with dizziness the last couple of days. I also have a heightened sense of smell but no sore breasts. Should I see the doctor for a blood test?? My other worry may be PCOS and trouble getting pregnant as my mom had the same thing. Thank you very much for any insight!