What is a missed period?

i am 21 years old , my last period was dec10,2011, and i took HPT today for the second time , the first time i took HPT was the 10t day i missed my period , i supposed to had my period jan 9 , and feb 8 .. i live in the philippines so its it feb 10 today...

My girlfriend just had a missed period and Im worried that she might be pregnant or sick. Sometimes her body changes her cycle. For instance this feburary she had her period about the 10 of that month and on March she had it on the 25th day. I dont know...

took a pregnancy test last tuesday and it was negative, I have been on the patch for 8 months with no problems. Anyways I started spotting about a week before I should have got my period. it was just a little bit of light pink then brown when i wiped...

I just want to know few details about the missed period and how many days or periods will i miss if i got the pregnant? My monthly periods are like this May 16th to 20th and Again June 11th to 15th. And I supposed to get period on July 7th or 8th but...

I'm 20 years old and my normal cycle is between 32-35 days. On day 38, when my period had not come yet, i took a home pregnancy test. It was negative. The next two days i cramped a little like my period was going to come, but it didn't. Today is day...

Last year, i stopping having periods because i was slightly underweight. This year, i reached a healthy weight again and i have maintained it. My periods started again two months ago, and they were perfectly regular - the second arriving 28 days after...

I had unprotected sex and boyfriend came in me beginning of February and missed my period but last month, now I'm on my period what feels like my normal period, I've taken 3 ...show more

So I have been on the birth control pill Trinessa for over a year now ever since I had my daughter. I have never missed a period and it's always been on the last set of pills. Well last month I was only having spotting and my doctor just told me it was...