could i be pregnant and not know it? my period in March was due on the 10th and came on the 12th. And in April it was due on the 7th and came on 16th. I get all the symptoms like is gonna come on time them it never does just like this month it was due yesterday and I cramped but nothing. Just like March and April and when it does come I have no symptoms at all. I've always been regular and Feb. and before then, my period would come maybe a day or so early but never late and I do mean NEVER. I'm not stressed and my diet has always been the same, I've never been a big eater. Any ideas?