Need some help!

Shelby
Last week Thursday I had some bleeding that I posted and asked if it could be implantation bleeding. As I just noticed my temp dropped that day to way below my normal (97.7). And was low for 3 days and now is above my cover line (99.3). Could this be a sign of pregnancy or just ovulation? Any advice would be nice. I have taken a test Monday and was negative and Tuesday was negative. Thanks!