I'm 29 weeks pg and on and off throughout my pregnancy I've been getting period type cramps. I recently had to go to hospital with bleeding and they said I had thrush. I applied all the creams and took the tablets but, whilst the bleeding stopped, the cramps are still there. They're not painful as such and bizarrely only seem to come on in the evening when I get home from work and finally get a chance to put my feet up. Should I worry?