Ovulation question

Hey all! I am in my first full month of tracking my cycles and I think I may have ovulated today but I am not 100% sure. My temp for the past 3 weeks has been pretty much 97.3 or something close to that. Three days ago it dipped to 96 something then the next day was 97 something, and then yesterday morning it was 96 something again. This morning my temp was back to 97.4. I think I ovulated today but not sure why there were two dips? Also, had sex last night sooo if I did ovulate, there's a good chance I got pregnant right? :) thanks in advance!