Pregnant??

Crystal
I had IUD in for 6 years and then off and on for the past year (had complications with it), it's been out since February 20th 2017. My boyfriend and I are TTC. I am 38 and overweight so I know it's going to be tough. Glow has been on point as to when I'm going to start my period and the last two months it's been normal red and lasts about 3-4 days. This month I started spotting brown old blood the night of July 4th and today I have nothing. I usually get cramps and the everything when it's that time of the month. I cramped for two days last week (week before I was due) but nothing since. Has anyone else had this happen to them? Did they end up being pregnant or just have an off monthly cycle?