5 months pp lots of cramping

I exclusively breastfeed and as of yesterday I started getting ridiculous cramps. You tend to forget what they feel like when you don't havenit for so long. I really thought I was going to get period yesterday and nothing. Woke up and felt horrible again today and still nothing. I took an ovulation test to see if I was ovulating (history of painful ovulation) negative. Took a pregnancy test and also negative. If I don't get my period tomorrow I might call and make an appointment with my doctor.

Do you ladies have any similar stories that ended with your period or pregnancy? If i found out I was pregnant I would be very stressed out. But it is what it is and my own fault.