I was supposed to have bloods taken today for this test. Had I ovulated on my usual day today would've have been CD2, however my body likes to play tricks on my and I ovulated a day later meaning my period arrived this morning about 10am. I have just spoken to the gp receptionist and she said there is a space available last thing at 5.40...I'm just wondering if it is better to go ahead with this appointment or ring back and see if there's a space on Monday which would be CD4. I'm not sure which would be best? I have regular cycles so unfortunately this is likely to be a problem every month 