new pms symptom? (sorry its long)

Ch

so, my normal pms symptoms (started at 9, I'm 18 now) i just had bad cramps and was a little angrier than normal. nothing ever than that up until now... i turn 19 in march.. I'm also married and sexually active so i thought these were early pregnancy symptoms... i was on vacation with my husband a little over a week before my period was due and my breasts were beyond sore.. they hurt awfully and it felt like strings were being pulled in my breasts and they were aching and tender.. and then i was crazy moody and fatigued and just really felt like i was pregnant.. well, i ended up a week late for my period and had negative pregnancy tests the entire time and continued to have sore breasts up until this next cycle. my breast pains got worse and i started spotting a day before my period was due..?? (NEVER do i ever spot) i have heavy bleeding always the first day of my cycle until the last.. so i spotted for three days then later at night on the 3rd day my bleeding got heavier and progressed into a regular-ish flow... could i still be pregnant? or did my symptoms just change now?? someone please help me and tell me their story