So i've been doing some research about when i should take a pregnancy test, and it said you should take one after you miss your first period...

here's the story...

On October 9th i got my period, and had unprotected sex with my boyfriend and he finished inside me.
My period ended on the 14th (day6)

I dont have regular periods either they come at different times of the month so i never can keep track of when they come.

can someone help me out please? You'd be ALOT of help!!