Husband and wife having same blood group O positive does it affect to child birth

Patient: Hi,I recently married me and my wife having the same blood group that is O positive (O positive) both aged 26 yrs and planning to have child so same blood group (O positive) for both husband and wife does it affect child birth.If it affects please let me know precautionary methodsWe are not relativesWaiting for your replyThanksManu