Should I have waited to test?!

If u don't use ur first morning's urine to take pregnancy test will it come back negative?! My last period was 12/6/15! I had sex 12/23/15 through 12/27/15 at least 2-3 times a day. And my period still hasn't came yet! I've been feeling bloated, I have this constant feeling my period has started but when I go to check it hasn't. The bottom of my stomach has a tingly weird feeling sometimes! So decided to buy a dollar store pregnancy test and I took it @ 8pm and it came back negative. Should I have waited until the morning to take the test??