Temps while on BC and Plan B

I’m wondering if there is anyone out there that is on birth control but also has the ring and what there scores are like? I take the combo pill but also just got the ring to try and give me some peace of mind that the pill is working. I’ve had the ring for a few nights now and my temp has been above the baseline each night which is freaking me out. It did go down .2 from the following night my resting heart rate last night was 57-70 but I was up freaking out about all this. I did take a plan b on December 7th and I did have a cold from the 3rd to about mid week this past week so im wondering if that could be affecting it as well. From what I’ve seen women have noticed a possible pregnancy from there temp being elevated above the baseline as well as a high resting heart rate.