Hi Baby_blip
If you are comfortable at home then I would suggest you stay there until the contractions get closer together.
You should give the hospital a ring if your waters break, your contractions are 5 mins apart, the pain becomes too much or if anything does not seem quite right to you.
Changing position can alter the contractions. Some people suggest that laying on your left side can increase the oxygen supply to your uterus and this would explain the contraction when you lay in that position.