Question about late ovulation during your cycle?

I have irregular cycles but as of the last couple months they average about 30 days. This month I believe I ovulated on the 20th day based on past months, that would be late in the cycle for me but I had a day of a lot of lower abodmen cramping and the next morning I went to the bathroom and had a lot of ewcm very clear and throughout the day had it off and on prior to this I had no signs of ovulation and thought I wasnt going to. We bd hoping ttc. But despite the fact I normally have 30 day cycles would I need to wait the few extra days until 2 wks after possible ovulation before I can test.