I started getting contractions around 10:30 pm on Monday night

I started getting contractions around 10:30 pm on Monday night. I stayed up a couple hours timing them and when I realized they weren't going away, I couldn't get to sleep. I got out of bed because I needed to use the restroom and wondered if walking would make the contractions stop since in the past, it did. They tapered off while I was walking but as soon as I sat down they kicked back in full force. Around 1:45 am they were about 5 mins apart and because I was already 4 cm and my midwife had told me not to wait too long if I felt like I was in labor, I called my doctor. She told me to come in and get checked. I woke my boyfriend up and got my stuff together and came. In the meantime my contractions were 2 mins apart the whole half hour ride to to hospital. She checked me at 2:30 and there was no change. Said she would check me in an hour or so.