I have pcos and irregular periods however after loosing 18.5lbs I had a period and am due to have clomid next thurs. I went for ascan yesterday and my left ovary was clear and big and the lady said I had ovulated and that my lining wall was nice and thick she said the doc will want to do a test next thurs to check if im preggs as now is too early. But she inplyed it was looking good, my last period was 7th oct, I think I ovulated 15-17 days of cycle and have had cramping in pelvis and felt very tired. Could I be pregnant??