Ovulation testing after miscarriage

Hopefully I can get across my question.... I miscarried in August at 12 weeks. I use clear blue digital opk to track my ovulation pattern along with the glow app. So for anyone using this same brand you know you get a ⭕️ if there is no hormone detected, a flashing smiley face when you are getting close and a static smiley face for 48 hours once the surge is detected. I have started getting the blinking smiley face on day 13 of my cycle which is normal for me. And I typically get the static solid smiley face on day 20. Again all normal for my 29 day cycle. Today is CD 17 and I got a⭕️. This happened in October also then the next day I got a solid smiley face. I test the same time everyday and am so confused why it would go from blinking to ⭕️ and then solid smiley??? Anyone else have this same problem. I am so frustrated with this journey and want nothing more than to give my husband his first baby. I have 3 from previous marriage and want so bad to grow our family. Sorry for the long post.