I got my membranes stripped today. Do you think it might have worked?

I'm 39 weeks 4 days pregnant with my first child. I'm 4 cm dilated, 75% effaced and at -1 station. The doctor seemed like it would work but I'm scared to get my hopes up. Every since I had it done though I've been having a lot of cramps and my stomach is really hard. But I've had no spotting what so ever. What do you think?