Am I eligible for unemployment compensation due to the fact I was laid off while pregnant?

I was laid off of my job after 13 years of service and I was receiving unemployment compensation. I was also four months pregnant at the time and already showing but I did manage to find a part-time job with no benefits. While I was at the part-time job I was still looking for full-time work unfortunately I didn't find anything before I had the baby. Now I am told that the eight weeks that I had to stay out due to giving birth I was told I am ineligible for unemployment compensation. My question is if I still worked for them I would have sick time and vacation to use and it is not my fault that they decided to lay me off when their excuse was ridiculous. I was told that my job was eliminated as a secretary which is funny because there are two other secretaries and we all do the same job but I was there longer and made a little more money. I would greatly appreciate advice on this matter