Femara usage

Brittany • 34 years old;wife,mom, teacher
Hi everyone! I have an ultrasound tomorrow, but was w wondering if anyone has used femara. I've had two cycles with 2.5 mg. both time I had good sized follicles and lining. Ovulated fine! But with no bfp. Now going for round three, re increased femara from 2.5 to 5. Has this happened to anyone? If so, what were results of ultrasound?