I will know in a day or so if I'm preggers

So, this cycle we timed intercourse well, we also used preseed. Leading up to my period I haven't had symptoms really, I've just had slight cramping and other than that nothing. Normally I have pretty bad PMS, but I've had little to no PMS. Today, however, is what has me thinking I might be pregnant. I had a rusty colored discharge (could be implantation bleeding) that I've never had before, also, normally when my periods starts it starts with red spotting then the next day full force. So tomorrow if I'm not starting AF I'll be very suspicious. 💆🏽We will see!