Help me understand

My last cycle was jan 17 -24. My next cycle was suppose to be Feb 14 but I have yet to see my cycle. I'm now 23 days late. I took two test the week I missed one was unclear and the other said negative. I haven't taken anymore, but I'm having back pains hip pain and craving things I wouldn't normally eat like pickles. I haven't had any spotting or anything like I did in my first pregnancy in 2010.