This is my first post here. A bit of background: I used to cycle occasionally a few years ago but never really enjoyed it. I was trying to lose weight/get fit and forced myself to ride really and tried to convince myself I liked it. I managed the losing weight part (I dropped over 5 stone) through healthier eating but didn't ride often enough to affect my fitness. I had a scary experience on the bike which meant it didn't come out of the shed for ages, then I got pregnant and here I am more than a year after he was born back to where I started weight-wise and being threatened with BP meds too. I'm a lot of stones over weight and very unfit. Recently DH bought me a secondhand trice which I'm loving. Right now I can manage 4 or 5 miles - this morning I got up at 6 (something I would never have done before) and I did 4 miles in 20 minutes but my legs felt like jelly when I was done. I intend to do this 3 or 4 times a week to begin with. Is this enough to affect my fitness? Obviously I'd like to be able to do longer rides eventually but this is about my limit right now. Thanks for any input you can give me, or suggestions of things to try.