EWCM - help

WR

Ok, I NEVER get EWCM, but I just got my first period on Sunday after an MMC/D&C. My periods usually last like 3 days plus one or two days of brown blood so I’m in those last couple of days now but I went to the bathroom and when I wiped there was loooads of EWCM. Is it normal to get that straight after AF/at time other than your fertile window, or is there a chance I’m ovulating really early? Has anyone else ovulated at CD4-5? I don’t normally start OPKs until CD7-9, so just wondering if I should start them now just in case?