Temp drop post ovulation! Open to any advice

Hi ladies, I'm Capri. DH and I are TTC baby #1!!✨✨ We have been actively trying to for 3mths! He's gone two weeks a month, so you can imagine how this is going! Well I have regular cycles 26-28 days. Last cycle was 26 days and I forgot to log it unfortunately! So my CD are actually 2 days off. (Quick briefing on my chart) I'm assuming ovulation occurred CD12 which would be CD14 cause of my previous cycle only being 26 days which would make me 9dpo. Both days 8dpo and 9dpo my temp drop but not below cover line. Is this normal?