Just a quick question, what's the longest anyone ever heard it taking someone to get a BFP?? If I were to have had implantation bleeding on Apr 16 would that make me 4 weeks?? I'm really getting confused I had a faint faint positive on Thurs and I waited until today to retest and it came up negative. So I was just wondering if my last "real" AF was Mar 20 and I know implantation was Apr 16 could I be pregnant and the hcg not be high enough to detect or am I just not pregnant and try again??