TTC journey HELP!?

So, I need advice ladies!

TTC journey started beginning of this year, I currently have a 8yo DD.

So I’ll give you a break down quick and let me know thoughts and your own experiences.

Period 1st - 6th June, intercourse every day from the 7th since! Started ovulation test dipping (only once a day FMU) on the 10th June. My fertile window should be 11th - 17th June with 16th june being most fertile day!?

But as the days have gone on my test strips are getting WEAKER!?!?????

Is there a possibility that I’ve already conceived!? Is it possible? Have any of you Mummas has this issue before!?

I’ve attached a photo for reference!

Thank you ladies and baby dust to all 💜