i don't know how long my cycles are exactly. usually it ranges from 28-30-32 days. i am quite regular. my last period started on 3rd december. around two weeks aftr my period, me and my boyfriend had "unprotected" sex using the 'pull out' method. he was 100% sure that he did not ejaculate. but in some websites i saw that precum can get u pregnant too. today is 28th december, and i had light brown *** (not pink) in the mornin and later through the day it got abit darker but nt too dark . could this be implantation bleeding? or could it just mean that im getting close to my period?