Confused, help

[Em36Uk]

This month we are trying ovulation tests for the first time
Wednesday 24th blank circle
Thursday 25th Smiley 🙂
Friday 26th blank circle
Saturday 27th blank circle
Sunday 28th Smiley 🙂
Don't understand why smiley few days apart?

Some people get a partial surge before their proper surge. Hopefully if you keep testing you'll get a solid smiley.

Thank you for your quick reply.
Both tests on Thursday and today are solid smileys

Ah OK.

I think they say once you've gotten one solid smiley to stop testing?

If you think the first solid smiley was wrong, may be worth using the line tests? I used mine with the ovia app so I got a number measurement each time.

Can anyone help, what DPO would I be, going from the above.
I've had lightheaded episodes today and currently in bed with terrible heart burn.