Am I pregnant?!

My period is currently 12 days late according to Glow. On my other app for period and ovulation tracking, it states I'm 9 days late. I have irregular periods but they are usually early instead  of being late. I have been cramping for about 2 1/2 weeks along with unusually sore breast. I have more frequent urination along with headaches and back aches. I am also constipated, which is unusual. However I am not experiencing "morning sickness" but more of an upset stomach through out the day. We have been trying to conceive for 2+ years. I don't want to get my hopes up. I have taken several hpt and all say negative. I'm just worried. Any suggestions or advice? Thanks in advance