Assertion: implant's effect | /r/HasProperty | period
Facets:
value: for the first approximately three months
type: TEMPORAL
Source sentences:
text: Side effects may include irregular menstrual periods, no periods, headaches, and breast pain.
text: Side effects may include irregular menstrual periods for the first approximately three months, including periods lasting longer than normal, bleeding or spotting between periods, heavy bleeding, or going with no period for the mentioned period of time.