Help! Negative after implantation

Rachel

I am so confused by my body right now. I think I ovulated 3 weeks ago and I had spotting for three days (brown/pinkish) starting last Sunday through Monday. I took a test on Thursday and it was negative and then tested again yesterday and negative (posted below) there is a very faint line but I think it's an indent. I have irregular periods so I have no idea when a period is due (it's been 65 days since my last period) and I have history of ectopic pregnancy. Why would I get a negative after implantation? Should I be concerned about ectopic if it's possible my hcg levels are rising slowly or could it still be too early?