Not sure what to think yet...

So my last period was from September 17-23. I had some really light pinkish/brownish discharge that only lasted maybe two days around two or three weeks later before I was suppose to have a period so I knew it wasn't coming anytime soon but my periods are usually pretty regular so I feel like I should feel more like it should be starting by now. I usually get more of an appetite but this month is the opposite and for a while I felt like everything was making me sick. I was also getting cramps and feeling constipated, tmi I know but now everything is running me to the bathroom instead. I still don't feel like I'm gonna start anytime soon but I know that could literally change in the blink of an eye but I just don't know what I should expect. I feel kinda dumb writing about this on here but I've seen people give others great advice on here so who knows. And I did have unprotected sex at least 8 different times after my last period. Part of me has never seen anything being real or a possibility there and the other part hopes it is. Boyfriend and I have been together for a long time and we're both ok either way. Not sure what I should be looking out for honestly.