Please help

Kiersten

So Tuesday I bought clear blue ovulation test kit and Tuesday night it was negative and then yesterday morning it was negative and then I took another one yesterday night and it had a flashing smiley face then this morning I took one and it was a flashing smiley face...not even an hour later I took another and it was a non flashing smiley face...then I read that ovulation test aren’t accurate after having a baby. Idk I’m confused. I’ve never took ovulation test before this. Should I just rely and believe the test ? Or just stop taking them since I just had a baby 7 weeks ago and just test with a pregnancy test when the time comes? (I haven’t had a postpartum period yet. I bled for like 5 weeks after giving birth) I just want to make sure I’m not pregnant again 😩