delayed menstruation

hello mga momshie... newbie here po, ask ko lang sana... kasi apr at may same lang ang date ng menstruation ko 8th of the month.. but dis mpnth wala pa rin ako, i already have a son hes 11 y/o now... me and my husband is planning n magkaron n ng kapatid ang anak nmin... feb p nmin ung bnbalk kaso lage akong ngkkaron, pero now im almost 7days delayed... but im having abdominal cramping for almost 3 days... sskit tapos bgla mawawala... but im having may breast tender almost 2wiks already and im having a backache for almost 2wks also... im planning to have my pt tom morning... sa palagay po ninyo preggy po ba or hndi po... salamat po s ssagot mga momshie...