Body signs?

[Cinnamon88]

So I stopped using ovulations tests because I can't do it at work. There's cameras everywhere and I can't sit in the bathroom waiting for the rest to develop and more so I'm going by body cues. I have a regular 27/28, day period and I'm supposedly ovulating today according to my app. What are some body cues that ovulation is coming? I remember right after BD two days ago I had a sharp pain in my left pelvic side and its been off and on and stopped yesterday.