When to go into hospital

[ZahraLdn]

I'm 41 + 4 and have an induction booked for later this week.
Yesterday I had an upset tummy and starting feeling what I thought were contractions (shooting pains/cramps in my lower belly) every three minutes lasting up to a minute a time (I also had a bloody show followed by brown discharge).
I went into triage and was told my cervix was closed and was sent home.
The contractions have now completely stopped and when I phoned the hospital they told me not to worry.
Has anyone been through anything similar? When do I actually go back into hospital if the contractions re-start?

I was having contractions from 36wks with my last baby, they stopped / started / stopped and started again, ended up being induced at 38 wks due to lack of movement and GD, just keep an eye on things and don't hesitate to go back if you think things are progressing x

Thanks - glad to hear it's not just me then!
I'm started to feel a bit fed up and frustrated with the pain but thankfully my induction should happen on Thursday so not long x