Help!

Back in October I had an early miscarriage at 5 weeks. My cycles before the miscarriage were usually26-27 days, this month it was 30 which my doctor had said my cycles would be a little off. My period ended on Saturday. I decided to buy the Clearblue digital ovulation kits...I tested yesterday with my FMU and I got a blank circle (low fertility), but when I tested this morning I got a solid smiley face for peak fertility...can someone please offer some insight or has anyone else had this happen? I feel so confused and like I'm never going to get pregnant again 😭