Oral vs vaginal bbt

Just want to get some opinions on my bbt chart. So usually I temp orally but have heard that vaginally is more accurate, so this cycle I made the switch and started temping vaginally. But my chart looks more erratic than it did when I was temping orally 😞 some of my temps were taken at different times but that happened when I charted orally too and it still looked smoother last cycle than it does now. Can anyone offer some insight to my charts?

First picture is charting orally, second is charting vaginally.