i keep getting this light period cramp feeling in my lower tummy it comes and goes , i haven’t timed it because i’m not really thinking anything of it. i’m also 33 weeks and have had concerns about preterm labor with my doctor because my cervix being short and it has had some funneling .. the cramps don’t hurt though so i don’t think i am in labor , any idea of what it is ?? or if anyone had experienced the same thing