Am I pregnant??

My boyfriend and I have been having sex more frequently then usual. At first we agreed on trying, then decided it probably be best if we waited, although we did have unprotected sex  four times this month I'm wondering now if I'm pregnant. The past couple of months I've gotten my period Around the 20th and ended around the 27th the first time we had sex was January 19 then the 21st 23rd and 24th I have yet to receive my period Since December and it's already the first I have taken two test one on the 29th and the other the following morning I just need some advice ladies someone please help should I take another test and if so when?