Ovulation cramps or implantation cramps??

I’m 10 months postpartum and exclusively breastfeeding my daughter.

I haven’t had a period yet. I’ve been having cramping on and off since last Friday and I’m wondering if I’m ovulating or if there’s a possibility of implantation cramps. This is a test I took this afternoon. We have sex every couple of days and we haven’t been preventing in any way so there’s definitely a chance of pregnancy (not actively trying, but we’re okay if we get pregnant again).

What are your thoughts? How long did your cramping last for ovulation or for implantation?