Cramping

So I had mild cramping a couple of days ago that lasted for about 3 days that started in my lower stomach and into my hips.

I have yet to have my period from breastfeeding but we are trying to conceive. I thought maybe it was the start of my period but nothing happened. Chances of it being beginning of pregnancy?

* I started to wean from breastfeeding and Started back up my prenatal this month also.