12 weeks pregnant & still a pillion

Yup, stop immediately. You should have stopped in your 1st trimester. Doesn’t mean nothing happened means it’s not gonna happen at all. Better be safe than sorry. Every pregnancy is different. Some people might even carry their baby until 3rd trimester and still riding a bike or carrying heavy items but you, like anyone else, your body is supporting a growing fetus for the first time. You never know what can happen to the nerves in your body while carrying and supporting a growing fetus. Please stop riding for the meantime. Take care.