The TV star went to see a midwife immediately after the collision in which a vehicle hit her side of the car while she was travelling through London.
Since the incident, representatives for the star have confirmed that ‘mother and baby are fine,’ but Imogen still remains in hospital for monitoring.
Thomas, 32, took to her Twitter page earlier today to express her shock at the collision, which happened in Wandsworth, South West London at 3PM.
‘Can't believe we just crashed in our taxi. On my side too. Shaking...feel all shocked with @CharlotteFYoung'
'We're all ok. The other driver literally drove straight into us Sideways. @AddisonLeeCabs hope your driver is ok he was shaking.'
‘I feel all shook up,' she continued. 'Just on my way to see the midwife now to make sure baby is ok cause I haven't felt her kick'
'I'm on my way to hospital now as I haven't felt my baby kick and feel shocked. I will get his reg off pr company'
Imogen later thanked her followers for all their kind messages, before revealing that she is being kept in hospital for monitoring overnight,