No, a scan will not affect your periods
. What I would suggest, is, call your doc, <span style = 'background-color: #dae8f4'>and</span>
request Prometrium for 5 days. That will induce a period if you are not pregnant, and
won't do anything at all if you are. If you do have a period, I would suggest taking femara
5mg daily for 5 days starting on the 3rd day. That will induce ovulation. I would then do the progesterone test ( or 21 day ovulation test ) on that cycle. You'll get more bang for your buck.