Should I be worried

So I took aftera it's like plan b I got it cause they didn't have plan be a few weeks back but I had sex 2 days after ovulation but he pulled out I know not the best way to prevent pregnancy and for some reason I didn't think to buy the morning after pill I got somespotting 3 days before my expected period was suppose to come but it didn't come lately I've been having lower abdomen pain and feeling bloated but it goes away and comes back and my period is late 7 days I know the pill can cause you to be late but should I wait till the month is up to do a test