I am currently in week 5 of a cycle. I am taking 9mg of ACP-105 and 30mg of SR9009 daily. My menstrual cycle has not come on this month. I am 100% sure that I am not pregnant. Is this normal or something to be concerned with? Should I stop and take a PCT? Should my menstrual cycle start back as normal once I stop the cycle? I've taken two cycles of ostarine before with no issues.