yellowish cm in early pregnancy

sophie
Hi Ladies,
I am currently 8DPO and have been having lots of systems and hoping they aren't phantom or AF
Firstly 2days after O I got sharp twingy pains in one side. Never experienced them. 
Secondly my boobs are sore and heavy, similar to AF systems.
Thirdly my cervix is High, firm and the opening has almost turned in I cannot feel it.
Lastly my cm is creamy, lots of it and slightly yellowish. No other systems of infection.
Anyone else had similar systems and got a BPF? Tempted to test early but don't want to get a BFN