We are new with the whole sheep thing she is kept with the ram 24/7 . Which I know is bad. Her belly is really low and it's her first time.Do you know for sure that she was with a ram? If so, how long ago. The gestation time is the same for goats, +/- 145 days. If she'll let you, press your hand firmly on her lower sides and see if you can feel a hard mass. Press on the mass, and if it's a lamb it will likely move in response to you pressing on it. Teats/udders aren't always a good indicator of pregnancy. Some goats (I'm not 100% sure about sheep, as I don't raise them, but I'm guessing they're the same) don't develop an udder until even AFTER they kid. Most start to develop one in the month or so prior to kidding, some even earlier than that. You can also check her rear. Usually the girl-bits are flat, even indented. When they're heavily pregnant you will often see things kind of bulging out. That's not necessarily indicating prolapse, but just a result of the baby pushing things around.
Is she a first-timer, or has she lambed before?