When to resume Rogaine postpartum?

I was previously prescribed 2% minoxidil and spironolactone for biopsy confirmed androgenic alopecia and telogen effluvium, which I took until trying to become pregnant. I'm 6 months postpartum and have just started experiencing diffuse hair loss more in line with telogen effluvium. I know minoxidil is safe to apply topically but am wondering when to time resuming it because of the initial shed I got with it before. Please advise