Percentage chance of pregnancy in any given month?

[ahhhhhpushit]

Does anyone know what the % chance of getting pregnant in any one month is?

My last few cycles have been 21, 25, 28 & 28 days (Came off pill so regulating I guess). This is the first month we have properly TTC. We SWI on cycle days 7, 10, 12, 14, 15 & 16 which seems like a pretty good spread to me?!

All things being equal what are the average chances?

Around 20% I think.

Depends on your age though.

I am 26 with one DC (14 months). I got pregnant first time with him!!!

Gosh as low as 20%?! That surprises me.

A 1 in 5 chance isn't really that low. You'd not risk it at those odds if you didn't want to be pg!

That's true!!!!