There is a discrepancy about her conception and due date in reports. I have seen where she was due Jan. 8th, Feb. 14th, and other times in between.
My son was supposed to be born by C-section. By all the ultrasounds and tests done...the date set was prior to the actual due date. I went into labor one month and 4 days earlier than the scheduled date and had an emergency C-section instead. The OB admitted he was off by more than a month as my son was full term! So with all the data collected, a high-risk/high-priced OB, and the ultrasounds done...they were still wrong.
The autopsy should show exactly how old the fetus is and DNA will tell us who the father is. Until then all we can do is guess.
There has been NO mention by anyone including the roommate that she had ANY contact with another man. No mention of men calling her, men seeing her on a social level, or dating men, etc. If there was another possible "father" to the child...we should have heard about him before now because Cesar and Christina would have broadcast this everywhere!!