Not sure

Latoya
I was wondering if I'm pregnant or not on03/27_28/15 I had intercourse with my husband he use the withdrawal method I'm not on any kind of bc my period came 04/13/15 for the first three days only seen pink when wiping the next two days was light on my tampon now it's now 05/28/15 still no sign of my period took three hpt which came back negative I take my blood test in two weeks I just wondering if any body else went thru this and wat was the outcome of it. Thanks in advance