Where is my freaking period????

We had sex the 29th afterwards noticed light spotting period due the 1st got spotting now it’s the 3rd no period but had clear stretchy discharge with a bit of blood in it. Now I’m starting to feel nauseated. My boobs are hurting. We rarely sleep together without condoms. If we do it’s a few strokes than condom on. The nausea has been happening since the 26th as well as sore boobs. The day I had spotting for when my period was due was clear and stretchy with a bit of blood. I have no idea what’s going on. I have had regular spotting the 29th and 30th but than it’s switched to this. Should I possibly test?