Implantation Concerns

Hi everyone,

So since yesterday and today on and off I have been having what feels like AF cramps but they are not as intense. It mainly feels like gassy cramps that come and go. It feels like AF is coming any minute but each time I check there isn't anything. I haven't had any bleeding just crampy, pinchy feelings. Also my nipples have been sore since ovulation and my boobs hurt to lay on them. I have back pain once I start bending down doing different things. I'm hoping these are all good signs of successful implantation and not AF showing up. AF is supposed to be here Saturday 😭😢 What do you guys think? Anyone have any successful implantation stories with similar symptoms?