Tests & investigations
Taken on day two to four of the cycle, these tests give a baseline picture of ovarian activity. High FSH with a low oestradiol suggests reduced reserve; results fluctuate between cycles, so one abnormal set is not conclusive.
Also known as: baseline bloods, day 2 bloods, cycle day 3 hormones
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.