Would sleeping in a hotter room cause a rise in BBT?

I agree with PP-- you haven't ovulated by the look of things... However, yes sleeping in a warm room CAN up your bbt up to a degree. I think it's more likely that you're having an anovulatory cycle, which happens occasionally even on those who do regularly ovulate (I had one my first month ttc, and I'd been charting and ovulating fine for 6 months prior, so needless to say I was frustrated).