Hi I Missed My Period For Two Mons..i Check With

hi i missed my period for two mons..i check with strip after 4-5 weeks of absense.its negative.then after i take primolut.but after i finish it one week of waiting nothing happen..then after few days i check again.but now its positive.is there any side effect on the fetus? i take it for 2 times a day for five days.