Cramping?

Kayla • Wife. Mom. Type 1 diabetic.
I'm new to being ttc so I still don't know everything there is to know 😳 but today I have had some sharp pains on my lower left side. Around where my ovaries are. They happened randomly & only lasted a couple seconds. I logged it and it mentioned that I am having mid-cycle cramping that could be mittelscmerz. I've never heard of this so I'm a little confused. My fertile week was the 6th-12th & my period should start on the 25th. Could this possibly be mittelscmerz after I ovulated or possibly just a cyst?