Trying to understand my body

I'm not really sure what's going on with my body since stopping the Nuvaring in January. I stopped January 18, had a period February 18 and am now on CD 43 since that period. My periods when not on contraceptives is usually 28-31 days. I took a hpt on CD 35 and it was negative, but I was having PG/ PMS symptoms around then. I still have symptoms intermittently like nausea (though my breast tenderness has been constant), but haven't tested since. Unfortunately I started temping at a weird time during my last cycle so I don't know if I've experienced a thermal shift or not. Anyone have any insight or advice? Below is my bbt chart.​