Just wondering if any of ye know if having positive OPK's 7 days in a row is a good sign or does it mean anything?? This is the first month I have used them and I have got dark lines every day since then, according to FF I ovulated last Wednesday so am only 4DPO. Is it normal for the lines to stay dark after ovulation? Have been feeling tired the last few days and every so often I feel AF cramps not bad but I know their there, don't know is it my head imagining them though.. I have a very short LP the last few months only about 8/9 days so I suppose a week will tell alot for me. So want this month to be positive!!! If anybody could tell me about the OPKs though it would be great, would prefer to know this is normal intead of getting my hopes up!!!