Adjustment of Status - I-485

Hello guys, we had our interview a few days ago at federal plaza. I want to say it went well.lol. Our immigration officer was very strict. Did not even let us swear an oath. Did not let us sit down. We entered and then he just started asking us questions. Asked for our I.d's. Interview lasted about 30-40 mins and he said he had everything he needed we just need to send him the birth certificate of our new born baby then he can make a decision. I think he said he has approved the i-130 but he needed sometime to decide on the i-485. We got home and we just realized it was so tensed we actually forgot to show him our marriage certificate. He had a copy we already sent in our package. But we feel we should've shown him the original copies. He took our credit card statements, phone bills and employment letter. We are getting the birth certificate next wk. Should we include the marriage cert as well or just send the birth cert. What do u guys think. We have greeting cards as well sent by mail from my family overseas. What do u guys think. Can extra documents hurt our case?