i didn’t have my period in january and it was supposed to start december 31st and end ok january 2nd. on january 22nd i had unprotected sex using the pull out method. 6 days later on the 28, i started spotting and it was brown and last a few days. i’ve NEVER spotted in my entire time of having a period. and then while i was spotting and few days after that, i woke feeling slightly nauseous and i’ve been really tired. i asked my friend who’s had a baby and she said that it could be implantation bleeding. my period for february was supposed to start january 31st and end on february 2nd and i haven’t gotten it yet. what do you guys think??