Should I be concerned with how faint this pos is?

I’m 14 dpo and got a positive yesterday on a FRRR. I took a FRER this evening and this was the outcome after it sat for about 20 min. I was hoping it would be much darker at 14dpo. I had a chemical last month and I’m scared it’s going to happen again! I got a BFP with my chemical at 10dpo and this month still got a net at 10dpo. Maybe late implantation? Anyone else experience this?