Hun, that's how I felt with Oskar!! I think that your body is gearing up for your little man to meet you. I felt I needed to go to the toilet but like you there was nothing. I felt "weird" the day before I had him. I actually didn't lose my plug and needed my waters to be broken as he was in distress but I did have a successful VBAC! I remember my tummy hurting like you are describing. I only had this in the hours before he was born though and I felt like I needed to push about 1 1/2 after first thinking I needed to go to the toilet.

I hope that this is the start for you!! It sounds encouraging to me Sending lots of fab vibes your way!!