I've cleaned, fed him, now he thinks I'm too old

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I don’t know whether this is right or not but I am 34 and in love with a 27-year-old guy. I picked him from the streets, started feeding him and let him stay in my place. He found a way into my heart and knows how to make me feel special. I have tried to start two businesses for him but they collapsed within months and he has really changed lately. I think he is using some illegal stuff because he is usually on the edge and sometimes just keeps to himself. When we fight he brings out the age issue and calls me “old” which irritates me. The trouble is I recently found out I am pregnant. Now my business is going down because I am confused and cannot concentrate. I don’t know what to do. I think I love him, but he doesn’t seem to appreciate it any more. Please advise...{Nina}