How do you determine if its your actual period or spotting?

My boyfriend and I have had sex four times in the past month, each time using protection. The first time, I took Plan B even though we used condoms just for extra precaution. That was on Feb 15, but I also took Plan B on Feb 28th. I usually expect my period around the 4th of each month. On March 6th, I bled a bit, not as much as I usually do on my period though. Could this be spotting from taking Plan B, or my period? How will I know what it is? Could it be implantation bleeding? Also, what are the chances of pregnancy with using condoms if we use them every time and he pulls out each time?

My last period was due on feb 23, and yesterday afternoon(feb 28) i noticed a little bit of blood when i used the bathroom. it got a little bit heavier in the evening with very slight cramping. not nearly as heavy as a usual period for me. i'm not ever late, i'm always right on time. could i be pregnant?

i had sex a day before i was suppose to start my period, we didn't use a condom and had been having sex for a year. the past weeks before this we did use condoms, but sometimes we didn't. i got my period last week but it didn't last as long as it usually does, it only lasted 4 days. i have been really Nassau's and have not been eating anything for the last 2-3 days because nothing sounds or looks good, i also have been puking in these days, and am slightly bloated and have light cramping. What could this mean?

Hey up I starting spotting last night and put a pad on but checked this morning and only a little brown is there and I'm not due on till tomorrow but I have had sex a lot since I found out my fertile days and I have had pregnancy systems for the last two weeks should I take a test

i am 19 yrs old college student i miss my period(or it didn't start the day it was suppose to) i didn't know how to tell my boy friend i know he wants to be a dad but so i pick until i finally text him he say now it makes sense from been tired lately and having headache every second and face looking puffy anyway a day after i woke up around 9pm light red almost pink and light cramps i had already notice my nipple swelling and have white things in it which i keep brushing out so now i am freaking out yes i am wearing a pad but it is never full and is always brownish in color any advice?should i wait until it end to take a test?

So my boyfriend and I have had suspicions that I may be pregnant lately. But today I was in the bathroom and I saw blood which I thought was my period so I put a pad on. Since then there has been no more come out and onto the pad. Is this early spotting of my period or..? My period is slightly irregular so I can't say when It should have happened. I just know it should be around the end of the month.

I took a pregnancy test about 9 days after it happened thinking it would be alright and came out negative. Although now its 13 days after and I felt a little neasea coming on but never threw up or anything and now thought I had started my period but some websites say thats spotting. My period should come in 6 days so would you think its just a period? Im also sick too which might explain the neasea. Problem is im only 17... So I can't really ask my mom quite yet. Any answers?

My period was very irregular. When I urinated only a small blood clot came out. This lasted for 2 1/2 days. My breast are sore. I took a pregnancy test on the third day and the results were negative. Could this be a false negative?

My period was very abnormal. When I urinated, only a clot of blood would come out. This lasted for 2 1/2 days, no bleeding. My breast are very sore. I took a pregnancy test on the third day and it was negative. Could this be a false negative?