I had it with my first 3 years ago, but it didn't start until later. I went in for monitoring at 30 weeks because she hadn't stopped moving for hours and they told me it was because I was having regular contractions and assessed me for labour. Foetal fibronectin came back negative, so I was told it was just an irritable uterus and to "take it easy". I tried and she wasn't born until 39 weeks, thankfully.
This time (2nd pregnancy) it appeared to start at around 18.5 weeks. I obviously knew what I was feeling, so probably about 10 weeks earlier. I haven't been in for monitoring at all. Last night the regular contractions (5 mins apart) got more painful and they're making me anxious (even though I know it's irritable uterus again). I rang the midwife, but she was not concerned and said just to put a hot water bottle on. If I do anything too much I get regular contractions in the evening and often through parts of the day too. It's so early, I really don't want anything to start, but I do know that last time it didn't. Just I have a 2 year old to look after this time!
Anyone else had a similar thing? How did you cope?