Been breastfeeding for 2 months but the last week i haven't been producing enough milk what could cause this and how i can i produce more??

Many things: Stress, dehydration, not enough calories, not enough rest and medications like antihistamines and others can decrease your milk supply. Control the above things as best you can. Pump after nursing to attempt to increase your supply. Take oral over the counter supplements such as fenugreek and/or brewer's yeast. Consult your physician or a lactation consultant if not better soon.

2 month checkup: How is baby gaining; may have more than you think? Needs checkup first to evaluate. May just need more rest,hydration, vits,good diet....Mother's milk tea,other meds if needed