31 weeks and feeling really off, been nauseous, fell asleep despite having to watch my two kids only slept for about 10 mins before realising I had fallen asleep. Then suffered a few period like cramps. Should I be concerned about the cramps or could they just be braxton hicks, ive never experienced bh contractions. Bub is still moving. And the pains were similar to how early labour felt with baby number 2. The cramps didnt last long and have since stopped.