I’m a mother of three children. My first born 01/21/12 my second 10/01/15 and my last 01/06/18. All vaginal births with no complications and all 39 weeks or more pregnant when I gave birth to all. I’m going on 30 years old in August on the 6th 2018. Now when I had my first official period after having my last child was March 10th to the 13th 2018 when my norm is 7 days straight. Since then I have not had a period and it is now June 12th 2018. I’ve taken test’s they all say negative. Please I don’t know what’s going on can some one please explain to me what is going on with me???