I know that stress can make a girl miss her period or can make it late, but can it shorten it as well?

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I only ask because I think I got my period this morning. I don't know, though, if it's implantation bleeding or not.

What I have seen so far looks like my normal period, but I haven't seen any blood for about 3 hours now and i'm worried.

I was stressing out sunday night and this morning about it, so i'm wondering if that, combined with my stress from last week, could shorten my period or make it lighter. Only one time before has my period been unusually light, for no reason at all.

I have read that implantation bleeding might come off as a menstrual cycle, but may come earlier than it should. I ask...how much earlier? I was anticipating my period to come on the 25th, but it came today, 2 days early. But then again, I know that my period has never been completely regular: last month I got it on the 25th, in june I got it on the 28th, may I believe I got it on the 21st. I suppose I suspected it to come on the 25th so badly that i'm freaking out because it's arrived early.

should I worry if my period is lighter or only lasts a couple of days?

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Implantation bleeding I know is scanty, spotty, has a pinkish tint rather than red, and comes earlier than the expected period. I also know that it's accompanied by light cramps.

All i've seen really is the early part. Granted I had light cramps this afternoon, but around 5 this evening they got a lot worse. Usually I get these cramps only on my first day and they usually begin between 1:30 and 2:00 in the afternoon, so i'm not sure why the actual pain started so late. I also feel nautious, which is not a common symptom of my usual cycle - only once before have I gotten nautious on my first day and I actually threw up; haven't gotten to that point today yet *knock on wood* I seem to be bleeding still, but it appears to be a bit lighter. I know sometimes when I lay down the flow lessens, and I was laying down earlier because I had passed out.

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I know i've been told by everyone and their mother that my chances of pregnancy are so small that being concerned in any way is foolish, but I suppose i'm just stressing again.

I'm going to call family planning again tomorrow and see if the examiner thinks I should still come in for a checkup or not. I spoke to her today and she said that implantation bleeding is not common, but I still worry.

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Scaredbaka - thinks she seems to look for ways to be stressed