Castor oil

So I took castor oil at about 10:00 last night woke up at about 1:30am with pretty bad contractions and I come out to the couch and they went away so at about 3:30ish I went to bed and all throughout the night I had contractions that weren't consistent enough to go to the hospital. So here I am now at 11:55 am wondering if I should take another 2tblspoons of the oil then when I get those contractions again start walking.....what should I do...any advice would be great!