Ok well I'm 21. My period has always been normal since the start. Get cramps a couple days before then my period starts. It's always heavy the first day and then lightens to about a medium flow the next 3 days. Well this time I started getting light cramps 2 weeks early. And the flow was light from the beginning. And it lasted 2 days n now it's very light flow (only seen if I wipe) and it seems lighter red/or pink. With occasional brownish.
I have been eating way more because I can't seem to get full, I'm a very energetic person n usually run 2 miles at least daily... lately I want to sleep ALL the time. My breasts are slightly tender when touched. I have weird feelings in my lower abdomen I've never felt. I'm also constipated but I have been before and it doesn't feel like this.

We had unprotected sex for like 3 min then he put a condom on and it didn't break I checked.. sex on the 8th n I've taken 4 ept tests since n all negative. So it's been 2 weeks since sex. Got what I thought my period on the 19 n I'm not suppose to get it till the 23 or 25th. It smells different.. sry being so descriptive.. I'm moody n pee a lot more, random hurtfull headaches . Yes will go to the doc soon but till then I just need some other advice. Thank you!

There is no "sure" sign, except for a post test. All signs can be other things also

Can u give me a few examples of what else it could be so I can try n find out? N could taking folic acid start any of these symptoms?