4 Days Left!!!!!

Okay so my boyfriend and I decided if a baby comes it comes but I'm so anxious to know! My cycle length is about 28 days and we had sex the 5&7 this month, both ovulation days. I experienced a little streak of blood on the 11 or 12 th , but not enough to even put on a liner. I have had some cramps along the way, But all week I have been sleep. Even if I take a long nap it still feels like I haven't slept! My breast have been tender especially my nipples but this happens around Af time so it's confusing... Currently I have 4 days until AF is supposed to come. Should I take a test now or wait? Advice pleeeeeeeeaaaase !!!!!!!