It does seem like the clomid is working then if your period is getting shorter!!!!!!!!Yeh!!!!My gyno said to BD like crazy from days 9-17 just to be sure!Even on clomid I ovulated late...I think it was day 19 so the test at day 21 is done after they think you should have ovulated.Most people do ovulate before that because on clomid I'm pretty sure you ovulate 5-7 days after your last pill.I took clomid on days 5-9 of my cycle and ovulated day 19, I used ovulation predictors to pinpoint it and I got pregnant that cycle!

Goodluck.............