Breakdown to the extreme advice appreciated

Jené • 23 years old married, mommy to a beautiful daughter 12-22-13 and handsome son 9-8-15.💜💙
So my husband just told me they may be laying people off at his work(he works at our local railroad). I'm a stay at home mom to our 18 month old and I'm pregnant with baby number two at 31 weeks. We just get by on his paychecks and I'm at a lost on what to do we still need things for my son before he arrives. I'm just wondering is there anything I can do from home that will help bring in any kind of money.  That way if he does happen to get laid off we at least can have food?!?