What is going on here?? HELP!!

Hey ladies...I'm a little bit confused and was wondering if someone could shed a little light on my situation. I don't have very regular cycles. In January, my husband and I concieved after 13 months of trying...that pregnancy ended very early. My last period was on Jan.29th....about a week and a half after it ended I started using opk's to see if I would ovulate that soon (just depends each month). Well, I got a strong positive opk but was coming down with something, I had to have antibiotics. I track by my cm also and when it never dried up I figured my illness probably delayed my ovulation. So I decided to take a some more the next week...I had about 3 days of brown tinged discharge so I figured it was ovulation spotting...but had 5 days of a positive opk's...(hpt's were neg fyi). So here we are 2 weeks after my last positive and I have really sore boobs...have had them for a week (I NEVER get sore boobs, not even before my period..last time and only time I had them was with my chemical in January.) So with the sore boobs, vivid dreams, sticky cm (like in Jan), somedays I swear I have more saliva lol, insomnia a couple of nights ago, off and on af type cramps that just go away....again all of these things I experience when we concieved. I don't know what to think. All of my hpt's have been negative. Could I still be pregnant. I'm maybe 13 dpo today....didn't get a positive last time until 14 dpo...the day my period was due. Sorry this is sooo long, but if anyone has ANY feedback or been in a similar situation I would greatly appreciate it!!! Thanks :)