Ate, please go see your OB as soon as you can, kahit walang bleeding, ang on-and-off pain na ganyan at especially yung nakakamimipit ka needs to be checked right away, para peace of mind mo at para sigurado tayo na okay ang baby mo. Hindi ko alam kung ano yan at hindi ko dapat mag-guess, pero alam mo naman, better safe than sorry tayo sa buntis! A few of us mums din nag-panic dito, pero turned out okay naman, pero importante na kinonsulta agad. Hang in there, and please get checked out today if possible. Let us know how it goes, ate.