Could I be pregnant? ( pregnancy scare)

Brittany

So I have a boyfriend now weve been together for a few months and I got pills but I work 10 damn hrs a day, and having my own baby anf barely getting sleep I just missed a few.

Fast fwd to now-- my period was supposed to come yesterday for the past months my period has either come on the 12th, 15th, 19th and 23rd..

Yesterday I had light spotting, like a strip of Brown blood not enough to fill a maxi pad and today nothing.

We've been having sex since the 12th. On the 12th he released inside me twice and again on the 17th.

Could I be pregnant? Should I wait until this month is over before testing?

Also are dollar tree tests accurate? Or should I spend money for a more efficient test?