I suspect you can as I have had times where I can feel awful one day, better the next, the rubbish again.
I noticed brown discharge last night and this morning it is pinky red so combined with other symptoms recently I believe that I have ovulated. I slept well, although still feel exhausted, and didn't go to the loo this morning and have no nausea, so all pointing to ovulation albeit early in the month.
The bowel habits fit with the pattern described by Kathleen.
Now that I have ovulated I hope things settle although I am worried about adding extra progesterone if my body is going to produce its own. Would be interested to if anyone else has tinkered with progesterone dose after ovulation.
I'm so desperate to get back to work and just want things to settle x