Ovulation test

Afrika

Hi ladies!

I would be grateful for your help. This is first ever ovulation test I did, and I only have 4 left. I am not able to buy more now, so I want to use them right.

I am well aware this is negative. But, one app says I will ovulate on 29th, other on 1st. My last period was on 12th and my cycles are 30-31 days.

How does this look to you? How many days am I far from possible ovulation?

Once again, thank you!