The hair cycle normally consists of growing, resting and falling hairs and there is a delicate balance between these stages of hair cycle. Normally hair should re-grow but if it is not happening, you should consider seeing a dermatologist.
Further information is in the following weblink
https://www.aad.org/public/diseases/hair-and-scalp-problems/hair-loss
Such a small duration of intake wont hamper the hair cycle
Next Steps
You can take dietary supplements of biotin and eat food rich in iron content.
Health Tips
You can consult me online for personal recommendations.