when should I take a test?

according to eve I'm supposed to get my period tomorrow. I was to get it yesterday the 28th and it didnt come so it predicted tomorrow. I've been getting my periods between the 16th and 25th since I got married in July (it changed since I got married and started having sex). my question is when should I test? tomorrow is already the 30th. my breasts are a bit swollen and I've felt like maybeeee I will get my period based on how my body feels but I am not sure. is it too soon to test ? I don't know what it feels like to be pregnant lol 2 days ago I was sick with headache body ache...idk. Yes we have unprotected sex and at least twice he's come in me completely. We're both in the same thought of trying to conceive soon so being pregnant would be good news ☺