My baby is 3months old by yesterday. post delivery upto 10 days milk is not generated and hence upon suggestion we opted for formula feed and now while trying to latch she is latching only my nipple and I'm having small nipple and another is flat nipple. since she is only latching to nipple I'm getting sore and cracked niples and breastfeeding has become a nightmare to me. Kindly suggest a solution or any tip or process to get a proper and deep latch.