Kicks or Cramps

Mo
I was told one of my babies has an anterior placenta so it will probably be further along when I feel them, I’m now 18 weeks. But I’ve been feeling some weird slight pains in my lowww belly (near where stomach and genital area meet). I can’t really describe it but they come and go. I’ll feel a few 2-5 at a time and then it will go away and maybe be on another side