OK, the last time i posted here was almost a year ago when i had sex with my boyfriend then.

Now, it's been a while and we're still using condoms. We try to avoid having sex since we really don't want a child (I am still 17). We are planning on getting married after I graduate but it would still take a lot of years before that day comes.

One of the reasons why we end up doing it is lack of self control.. we are working out on it, though, and we are almost successful.

We had sex twice last month (after abstinence of about 8 months or so) this got me paranoid again.

I know that even with the proper use of condoms, there is still at least 1% chance that i would get pregnant.

Now, I had this VERY light bleeding last week when i should be having my period. It was so light that panty liners were enough to hold it for hours. The color varies from dark red to brown.

I think it lasted for about 5 days then.

This made me uneasy so i searched the net about it and found out about "implantation bleeding" but i still don't know if this one if that or just a light period.

I had a urine pregnancy test the day the bleeding stopped and the result was negative but im still not very convinced (or maybe just paranoid)

I do not have any other pregnancy symptoms aside from this. I do feel mild abdominal cramps though.

Thank you very much for your help!