depends on how long it has been since you had your son, most of the time your hormones should get back to "normal" in a few weeks most physicians would suggest giving it 6 weeks, some would say it's never "exactly" the same again, but it gets pretty close to what it was except a few rare cases.
hormones truly depend on which hormones, not any hormone will do it and some will do the opposite, be careful what you ask, some hormones will increase the chance of cancer especially unopposed estrogen and if you have a family history you increasing the chance exponentially. never,never take hormones unless you have to.