What could change menstrual flow from heavy to light, mid-period?

Hi am having a regular period its a 28/29day cycle.but my period is always very very light i use panty liners for it instead of pad and it lasts 3days everymonth. Been married for 3years and not pregnant. Should i be afraid???

I'm 16 years old& I've been sexually active for a while. but this month I started my period and it's light. like way less than normal. last month was heavy, and the month before I believe was light. I've read that light = pregnant. and I'm freaking out!!!

I lost my virginity on October 3. We used a condom and he said that he doesn't think anything got out. I got my period on October 22, but it was different than any other period. It lasted 6 days, but instead of gradually shifting from heavy to light like normal, I woke up on the third morning and it was really light, it did get heavier as the day went on though. It gradually got lighter over the next few days. There were clots in it too. In between this period and my next one I started getting nauseous and having headaches. I got my second period on November 24 (when it was due). The blood was browner than usual and it got lighter faster than it normally does. It lasted 5-6 days though and there were clots also. I've still been kind of nauseous and had headaches, lately I've noticed backaches too. I've also noticed that the area under my belly button is more firm than usual and that I can feel my heartbeat in my stomach. I have really bad anxiety and I've been worrying myself sick over this. I know the bleeding wasn't spotting or implantation bleeding, there was too much of it to be either. Is it possible that I'm pregnant? Or am I just overthinking and stressing myself out

Hello, I'm 19 and my periods were quite regular for the past few months. My last period was from October 20th to around the 26th. However, on the 8th of November I noticed a small string of blood in my discharge and then some brown blood mixed in also. Then on the 9th November I found some watery pinkish reddish blood, so I thought i was starting my period, but it was only the 20th day of my cycle!! The next day when I woke up, there was little watery blood on my underwear, but when I wiped down there, there was more on the tissue. The amount of blood started to increase, but it was still lighter than the regular flow of my period, then at night there was only a small amount of blood. Then this morning I woke up and there wasn't much blood on the pad, so I went to school with a short pad, but then I kept feeling blood/discharge rushing out and when I reached school there was a lot of blood. I am extremely freaked out and I am 100% certain that I'm not pregnant because I haven't been having sex at all. However, on the November 5th I went to a Nike training camp and worked out so hard that my whole body was sore for 4 day straight, especially my lower body. So I was wondering if it was because of the intense workout (I've never really worked out aside from running so maybe this was too much)? Or if there's something wrong with me... I'm so scared...
P.s I have been having a minor headache since a few days ago with a cold and I feel extremely tired, I also haven't been sleeping enough (if that affects anything).
I would really appreciate an answer cause I've literally been worrying sick.. Thank you

Hello, I'm 22, my cycle has not been regular since I first saw my period, 14. My longest cycle was 90 days and shortest, 27 days. Since I started having sex I noticed my period gets delayed for like a week extra or probably when Im stressed. I usually have heavy period but my last period was so light I didn't feel a thing unlike others that makes me feel like I'm peeing on myself. 5 months went by afterwards without any period, and now its out again and even so lighter than the last. Within this 5 months I've been stressed out with school projects, had sex, no exercise, reached my highest weight, 105kg. Please what is actually my problem and how can I regulate my period? Thanks.

my girlfriend has a period with 30 day cycle, it usually lasts for 3-5 days,for the the first time she had sex on aug 8 which was her safe period,she usually gets her period on thirteenth of every month,we took ecps and the periods came on aug 20,next month heavy period on sept 19 lasted for 3-5 days, this month oct she had a bleed on 18th night, an 19th morning these were normal bleed not scanty n all,but no bleed from 19th afternoon but she has abdominal cramps,can she be pregnant

Hi , I'm 16 and I usually have a heavy 4/5 day period but this month it lasted 7 days and was really really light! I'm worried about it , what could cause it, am I pregnant?I also have recently started 2hours intense kick boxing every week and i am taking iron pills could that have something to do with it?

hi
im worried about my cycle now..im confused if i will take PT to be sure ..i had 29-30 days of cycle, last july 6 2015 i had my first day mens it should be lasted 7 days..we had entercoursed with my partner july 11-19.its august now and im waited my mens have but had back delayed august 14,2015.usually had my day 1-day3 heavy but just having now not heavy compared from my normal mens,at day 1 ive noticed not completely heavier what im expected and the day2 gone suddenly,have again a lil spot day3 and day 4 had but normal flow,.im confused now if i am pregnant since i had my ceasarian operation with my last birth..

Hi
I'm 24 and my periods are always regular like clock work . I had my last real period on December 31 2015 that lasted 5 days and was very normal. I only spotted for 3 days only when I wipe started February 4 -7 and now its March 14th 2015 and nothing I took about 6 test the last one i took was on the 4th of March and they all were negative so I don't think I'm pregnant. So is there something else that could be wrong?