Does this look like an indent or faint positive? I’m 15DPO and in previous pregnancy the test was way darker at this point. Does that mean it’s going to be a chemical?

Update: here is the progression over the past two days. I don’t feel like there is much progression. This would be 18DPO. I was testing ovulation with the strips and ovulated 7/1, and that is the last time we had sex this month so that would have been when I conceived. Has anyone had similar situations. I’m just concerned bc I’ve had an ectopic in the past and I’m scared it’s happening again.