Confession from my husband

Hi, my husband just confessed that he has developed an attraction (he likes a girl) to another woman and he apologised on it and saying that he will give a shot in our marriage. I am currently pregnant and we have been married for 5 years and this is going to be our first baby after years of trying. I really feel sad and wanted our marriage to work out. You all have any suggestion what can be done to salvage and rebuild a marriage? Many thanks!