I have a history of very irregular periods but had one last month that ended on memorial day. My boyfriend and I had unprotected sex around ovulation time and I had some spotting about a week later. I got a negative test about a week or so ago that may have had a very faint line. I've been experiencing very sore breasts, bloating, cramping, random nausea, backaches, etc. My period was due today but hasn't come yet. Does it sound like a should take a second test in case the other was just too early or just wait for a period?