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

By October 13, 2009 - 8:53pm
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I normally have a heavy period, that lasts for about 6 days. I am on the 3rd day right now, and my flow suddenly went very light (it was heavy for the past two days, like normal). I'm 18 and have had my period since I was 10 and it's been regular and very predictable for the past year or so. What could cause the sudden change? I did get the TDAP (tetanus, diphtheria and pertussis) vaccine yesterday, that's the one thing I can think of that has been different with me lately, other than maybe stress from school... could either of those cause such a dramatic change?

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EmpowHER Guest

Hi, I am 13 years old and I am on my 3rd period. My first one was like 15 days late, and this one was like 9 days late. I know that is normal because I just started and it can take years to regulate but this period is a bit odd. I am on my 3rd day and i was bleeding pretty heavy on the first two days and this morning but I have kind of stopped. Since 8:00 this morning I haven't had any new blood. I use tampons, should I use a pad? is this normal?

October 23, 2017 - 12:59pm
HERWriter Guide (reply to Anonymous)

Hello Anon

This is all normal. You may have to wear a pad on several days "just in case". It's frustrating but it's something we women have to deal with as we enter puberty.

October 23, 2017 - 5:00pm
EmpowHER Guest

I'm very heavy on my first day then it goes to almost nothing on the rest of the days what would cause this? I'm 14 and have had my period for about a year and it's been fairly regular.

August 23, 2017 - 5:38am
EmpowHER Guest

HI I’m 18 here’s my issue the last time I remembered I had my period June 10-15 but I did Norns have no period for July. I started having light/ brownish bleeding on the 15 of August been doing for 3 days now but it’s off and on It will show then go away . But I’m having negative pregnancy test. Can someone help

August 18, 2017 - 3:37pm
EmpowHER Guest

I'm 20 and I'm always having it for a span more than two weeks. The first seven days is very heavy. And sometimes I have mild-severe dizziness, and memory lapse.

July 2, 2017 - 8:48am
EmpowHER Guest

I would recommend getting checked. I'm 36 with 5 kids and with my 3 kid I had my period for the first 2 months. When I found out that I was pregnant I was 14 wks pregnant. So in my experience you can get your period while your pregnant. I honestly never thought you could.

May 10, 2017 - 12:35pm

Hi! So I was confused about this.
My period ended between March 11-13, I'm not sure so I just put between. So, march 14, my bf and I messed around. He just rubbed his to mine in my vaginal opening. No penetration because I'm virgin. There was also no ejaculation. But he is not sure about pre cum, but he said that he urinate before we did it. We did it about 2 times. Apr 3, I got my period the first one was so brown, it lasted for 7 days. SO my period lasted for about apr 9. On apr 29, I was shocked because I got my period early, there was no cramping so I'm not aware that my period was coming, but on the past weeks, my boobs got bigger, it has stretchmarks, it was red. and there's also veins that is visible. it's color green. Btw, my blood was bright red, and also it has clots On apr 30 (2nd day) I went to swim, but just a few minutes because I''m worry about my mens. And I drank lots of sodas, about 10 small cups. So on the evening, it lessen. TOday, may 1 (3rd day) it was lighter, i think I dont have period or just being paranoid :'( Am I pregnant? please help me. I took a pregnancy test between ap 21-23 , it was negative.

April 30, 2017 - 5:34pm
EmpowHER Guest

Hello! I'm 19 and I've been on birth control for about 2.5 years now and usually I start every Tuesday morning of my placebo pills, but this Tuesday morning it came later in the day and much lighter than my usual period(usually heavy heavy) just worried about pregnancy! Bc I'm so use to it being so normal all these years and now it's different!

April 18, 2017 - 6:38pm
EmpowHER Guest

I m 26 (married). I usually have a periods for 5days, 2 days heavy n 3 days light. But this month it last only for 3 days hardly in which 2 days the flow was heavy n 1 day it was light, I want to know is it OK? Or there could be any issue. As it happened 1st time with me so I am worried.

January 13, 2017 - 1:21am
EmpowHER Guest

Hi! I'm 14 years old with my 3rd time of having my period altogether. The 1st and 2nd time of my period was as usual normal and was fine. This third time is extremely light and barely anything at all on the 2nd day. Please help me as I don't understand what I should do.

September 1, 2016 - 4:50am
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