need advise

[awesomeme]

I was recently diagnosed with pcos so i had to get the implonon out and get on the pill but two weeks in i got off the pill and had my period may 28 for 3 days the me and my bf had unprotectecged sex on the 8 and a couple times after that.today is june 30 and still no period and i have been naseous after every meal,headaches a lot,moody,tired ALL the time,and my boobs get very sharp pains in them throughout the day and feel heavier.i took a dollar store testand it was negative should i believe the test or could i be pregnant please help