I have not bred this species specifically, but I can give you some general information. Gestation is generally around 60 days for most colubrids, but can be longer. Females will mate multiple times and not all snake stop feeding prior to laying. My jeweled racers for example, actually eat more when they are gravid and will even eat the day before they lay. You said that your male was nervous, if you mean he was twiching, that is how the male checks the females readiness to mate. If she is not receptive, she will give him a push when he twitches against her. You check this yourself by mimicing his twitching with your hand, if she pushes you, then you may want to remove the male to give her a break.Do you have an incubator ready? and a nesting box?