I have been having some weird discharge and cramping since about Tuesday idk what it could be but…

I have been having some weird discharge and cramping since about Tuesday idk what it could be but test are coming out negative so can someone who knows what implantation bleeding looks like send me a message so I can show you what I have been having so I can find out if it's that type of bleeding or something else lol never had the implantation bleeding before and I don't cramp while on my period so these cramps are odd and also when would I need to test because I guess I need to wait another week or so to test not sure when I'm supposed to start period again because they have been acting crazy since September