Femara and odd periods

Jamie

I am on my 2nd cycle of femara currently CD 20. I had a sinus infection and cold this cycle so haven’t been doing OPKs regularly. However my cycles have been odd. My period was 2 days last cycle with about 2 days of spotting prior.. then this 2nd cycle I took femara 5-9 and now cd 20 I’m having some light bleeding. I’ve had no ovulation symptoms that I have noticed (since I was sick and not tracking well). I had a shorter cycle in the past about 28-30 days with femara but 20 days?? Seems quite strange… anyone experience this? I’ll be calling my doc if it picks up and is a full period. But I’ve never had mid cycle spotting prior. Anyone else have odd cycles with femara?