Won't affect your credit score!
FHA loans will help lower down payment and put you on the path to new homeownership. They’re backed by the Federal Housing Administration; in the event of a default, the FHA reimburses the lender. The government backing significantly reduces the lender’s risk, allowing them to set lower qualification guidelines and offer loans to more buyers.
FHA lending has been popular in the US for a while, because borrowers can qualify with a down payment of only 3.5%. Many borrowers like these loans because of their lower credit requirements and the ability to have a higher debt to income ratio.
A major reason for the popularity of these loans is that perfect credit isn’t an eligibility requirement. Loans from the FHA have some of the lowest credit requirements of any of today’s available mortgage types.