Ovulation help!

Hey ladies, I’m a little worried about my ovulation. The first reason being a never notice having EWCM. I remember having it when I was younger but since I got pregnant with my daughter (two years ago) I haven’t noticed it at all. The second reason being I am taking ovulation test and logging them but none of them have had a very strong second line. My ovulation day was supposed to be today but after logging my test this morning the app has now predicted it for the 16th. I’m not really sure what to do. Any advice?