Postpartum cycle? Can it come and go?

Lauren

I have had 2 cycles since I had my 14 month old baby and I am still breastfeeding. I was suppose to start my 3rd period yesterday and still haven’t gotten it. I’ve had severe bloating and cramping (that I’ve never had before). I have taken a pregnancy test and it is negative. Can you get your cycle back postpartum and then lose it due to breastfeeding?