Can you get pre ovulation cramping?


I'm currently on CD13 and predicted ovulation in 5 days. Today I've been getting really bad cramps like AF cramps. Can you get pre ovulation cramps before your egg is released? My opks are saying nothing. Well one kind is (it's a new brand I tried called One Step) and thus one has just 1 line. Now I did one with the pink ones and both days had a vfl!! Todays is a bit darker. Any help please ladies?

Many thanks

P.S baby dust to all who's TTC 🥰