Quoting Mommy to 2 beautiful kids:" my opk from this morning came back positive again but if i take them in the after noon they are stark ... [snip!] ... know what the hell is going on. If i am pregnant I'm not far enough along for a digi to pick up cause I took one this morning"
obviously whats in your urine is stronger in the morning than it is in the afternoon, so my advise is, test again in 2 days but keep checking with OPKs, cause they are a pos sign you might be pregnant, whatever DPO your on you must be too early :/