Twinging feeling on ovaries

I’ve been having cramps for roughly a week, not too bad. But today I felt this, it was like my ovary was pulsating, twinging. Both of them did it at different times and still are currently. I’m also feeling it in my stomach. My sides hurt as well. Back pain. Some sharp pains here and there. Could this be an early pregnancy sign? I got my positive OKP on the 13th & 14th. Used preseed as well.