2 days late, sore nipples, & period cramps?

My situation:
1. 16 years old
2. had sex about 4 weeks ago (with a condom, but my boyfriend didn't really know what he was doing)
3. my period is 2 days late
4. i also have sour nipples (no odd color, however ) , period  cramps, and diarrhea (but the diarrhea  could be from what I've been eating  lately )
5. I have virtually no discharge (it's usually bad, but for the past 2 days, my underwear has been totally clean.

Could I be pregnant?

now before you star typing  your incredibly long lectures about the dangers and consequences of having sex at my age, i'd like to inform you that i'm already very aware. i know i shouldn't have, but my boyfriend. he has this way with words that made me disregard everything i've learned in the past. when i told him i might be pregnant he told me that that's not his problem, and so... i kicked him down my stairs (he's doing fine. in the hospital). i've read up on pregnancy when i was 13 and i know most of the facts. but this situation is a little different and i would like to know if i may be pregnant. i won't be easy letting my mother know, but it's a consequence that i have to face for my actions. please. your answers are greatly respected and appreciated.

[laci25]

I have to say I am glad that you do understand all the consequences and that you really are too young to be having sex!  Now,  have you been worrying that you might have gotten pregnant since the day you and your bf were intimate?  If you have been stressing out about it then that could be the reason you are late!  Also, periods can be late for no reason at all!  I would say to wait a little longer to see if you do finally get your period.  I would give yourself about a week.  I know I was stressing about the possibility of being pregnant again only a few months after I had my last baby.  I ended up being 5 days late because of it, but I was not pregnant!  My advice to you is to just relax and stop stressing about it and just wait to see if your period comes.  I would say you probably aren't pregnant bc you did use a condom, but also condoms aren't 100% so just wait it out and if it still doesn't come, take a hpt.  If that is neg, then I would advise that you make an appointment with your doctor to see if everything is ok!  Good luck!