i use PT already but its NEG

hmm hellow sorry but im not realy good in english..

but i hope you can help me guys..

nadelayed kc ako ng almost 3 mons.

then aug. 3 nagkaron na po ako

3days..malakas nmn po.im happy to have period again

but one of my friend told me that im still not safe

i might pregnant even i had my period..how was that??hmm

i use PT already but its NEG. but im still worry about it..

hmm hope guys you can help me..hmm thanks!!!!