Blanche and Agy look to be boys - more light would help the pics but I'm pretty certain of the sexes.
Sadly if the girls are over 4 weeks (250g-300g+) old there is a chance they will be pregnant, if they are over 6 weeks old (400g) there is a very high probability they are. This is why it is so important for you to weigh them asap.
Separate the boys from girls immediately and keep your fingers crossed that they are not pregnant - they look to be siblings and in-breeding can cause problems for the babies, as well as the girls being stunted by such early pregnancies.
If you could take more pics in daylight so they are clearer it will help give a definite sexing.
HTH
Suzy x