Milky discharge from the nipples can be observed in early pregnancy
as well as post ovulation. It may take a couple of months after coming off the pills to regain normal ovulation. As you are almost due for your next period, you may wait for it and get a HPT with a fresh early morning sample 3-7 days later if you miss it. If you wish for an earlier and better confirmation, you can get the serum beta-hCG
titres estimated. Hope your query is answered. Take care.