Well the clear blue monitor didn't pick up a 'peak ' reading this month

I ran out of tests after 15 readings I think it was. I got very disheartened by it.
We went on holiday last Monday and AF was due. It normally arrives with a vengeance when we have something planned but she still isn't here! !
I'm not going to test for a while though because
1. No peak on the monitor
2. I am cramping so bad and have been for a week

3. One minute my boobs are killing and are rock heard, next there soft and no pain.
4. I'm getting period type pains in the tops of my thighs.
I mc at 10 weeks last July and after the mc my cycle was 49 days (I was still getting bfp tests during that)
Other then that my longest cycle has been 41 days and then any were from 26- 36 days. I'm currently on day 39.
I really hope this is my month but I have so much doubt that I don't want to get my hopes up
Sorry for the long post! It probably doesn't make much sense because I'm using my phone to type.
Hope your all well ladies xx