OPK tests

Hi ladies. I don’t often use opk’s but after 1y 3m of trying I’ve decided to make more of an effort with them. I’m 4 days after my fertile window.

The lighter ones are yesterday morning and night and the darker one is this morning.

Is the darker one still negative ?

Also worried about ovulating so late this month, my period is due in 10 days. Would there still be a chance of falling pregnant within that time frame ? Thanks ladies