Started to worry

So I might be freaking myself out, but this is my fertile week and besides watery CM nothing. Per Glow and the other two apps I have I am due to ovulate tomorrow. I'm doing and IUI so it's so important to get the surge so I can call my RE and get in. I'm testing when I get home from work but I don't want to miss my O. I've had reg BBT in the 96 range. awe this TTC is so nerve racking. Any advice.