Don't worry. You can continue cycling. i had 3 kids and never stopped doing sports.. even cross-country skiing... Your belly could stop you at some point though!!!

As far as falling... the baby is very well protected... At my 2nd pregnancy, I fall head first from the 2nd floor down to the 1st floor in the stairs.... 2 weeks away from delivery.. baby had nothing... I had another bad fall in the stairs.. same pregnancy... at 12-15 weeks.. again, baby had nothing...

We should not stop from doing anything..

Good luck!