"i&#039;ve been on lyza for 3 weeks now, started it the first day of my last period. that period was completely normal, with no side effects at all. then 2 weeks later i started getting breast tenderness like now i normally do before a period but it was too soon so i was confused, but then today my period came almost a week earlier than normal, and it seems heavier than how they usually are on the first day. i had no spotting otherwise (this time anyway), no other side effects other than my next period came almost a week early."