Missed period??

Chelsea

Hi all! My boyfriend and I have been TTC for going on 7 months now... last month I had a very irregular period for me, I bled for 13 days but it wasn't steady bleeding it was very spotty and dark (TMI I know, sorry lol) and according to my tracker app I am now 9 days late. Not sure what to think or what last month could have been? Advice or info anyone?