Hey girls

Hi girls I just want to share... 
So, this last week was my fertile week according to glow and ovia. Ovia also says that I'm most fertile today where as glow said  that stopped yesterday. Anyway.. BD 3 times in my fertile week, could of done more only was absolutely exhausted from work. Yesteday I was having serious cramps, as if my period was about to come (due 22nd).. Any idea what this could be?? I've been checking my CM also and all week it has not once been EW? It's been more of a cream but still stretchy I just don't know what's going on haha! TTC for 10 weeks now