Open Question: first time home buyer?

My boyfriend and I are looking to buy a house. He has excellent credit, mainly because everything we own is in his name, i.e. both cars, credit cards etc. our rental lease etc. etc. We both recently graduated college, and both have stable income. However I have yet to start paying back my loans as they are still in their grace period. Because of all the outstanding loans on my credit report I am considered to have basically no credit. Would he be able to get the mortgage loan on his own? If not what effect would my credit have on the loan. We live in Pa, and I have also heard that because we have been together so long that our relationship could be considered common law marriage, and my name may have to be on the loan, but I have no idea if there is any truth to that. Any help would be much appreciated?