7 days late bfn 😫

I’m 7 days late got a bfn this morning still no sign of af and for the past week I’ve have had constant lower backache and like a pressure feeling in my lady parts and a slight dull ache/throbbing feeling where my left ovary is, I really thought this was going to be out month after ttc for 5 months as I had what I thought was implantation bleed at 11dpo it was like a brownish/pink blob of cm that only lasted a few hours thats really got my hopes up but now 7 days late still getting negative tests I’m just doubting so much now, has anyone had these symptoms and been this late and got a bfp, I’m starting losing all hope 😢 I wish af would just show up to we can start trying again