Flashing smiley face 7 days now.

I've been ttc for 2 years now. Gone through 2 mc's. I have a 3 year old. Before when I had the mc's I had a solid smiley after about 5 days. But the past 2 months they've never went to solid. They're always flashing. I'm not on any meds but prenatals and fish oil. It's been flashing 7 days in a row now. Why!?!?! But we've been trying everyday the past week. Lol!