Had my period 6/23-6/24. heavy clotting during. now have heighten sense of smell and feeling nauseated. neg pregnancy test 6/29. am i pregnant?

No: If 6/23 was normal timing for your period, you are not pregnant. If you are still concerned, repeat your pregnancy test in one week.

Maybe?: Is this typically how your periods present? How long do your cycles usually last? Do you usually pass clots? Are you using any form of contraception? You can't rely on the sense of smell and nausea to predict pregnancy. My suggestion is to wait another cycle (typically 28 days) and see what happens. If no cycle at all, you may be pregnant. It's too early to give a "yes/no" answer.