Dear Nikki,
Without the benefit of your medical history I can only say that normal cycling will return but it may take some time.
Remember your body has been using a different set of hormones that suppress the ones responsible for ovulation. The return to fertility is variable for every pregnancy and may be delayed even further due to breastfeeding, even four weeks. Fertilty drops off with age but it is a gradual drop not an instant one so you need not worry about your age being a factor. Since anxiety may also lead to temporary infertility, you should try to relax and enjoy your summer vacation. There are cases where women have become pregnant soon after delivery even while breastfeeding but that is not the norm. Taking Provera to artificially stimulate menstruation may cause more harm than good. It is commonly used for contraception.
A better alternative would be to track the return of fertility by observing the cervical mucus symptom and charting. Teachers who can help you with this are found on this site. If your baby turns one year and you still have not ovulated then you will have charts that will be useful in pin-pointing a problem if there is one. The problem can then be treated instead of the symptom. (A Natural Family Planning teacher can assist you in making these decisions.) Please don’t be too concerned at this point your case does not seem unusual.
Angie Frausto