it is easier to find the outside end. So I hope that is your problem
just take a strand of yarn on the outside that looks as though it is far on top. pull that away making sure it untwists from the coil. you may end up with a lot of lose yarn before you find the end of it, but you can just losely wrap that around the coil again before starting.
btw: there is a thread in "General knitting" that just deals with the twisting thing. Maybe read there, too.
If you have questions whatsoever: we are always here. Pretty much always someone has the answer - and mostly it is suzee, however she does it!!!
and: congratulation to the baby that you are expecting. I think it is a good time in life to start making things (or maybe starting a new way to make things) when a new family member arrives. You will always think back to this project and the path of learning with love and in connection with the thrill about your baby arriving. Enjoy!