how do you know when to test with irregular periods?

[maybethree]

There's a chance I could be pregnant (not planned but we knew the risks... I'm useless with the pill)
But my periods can be anywhere from 28 days to 40 days. Lsat month was 38, month before 28.
I had some very light bleeding / bloody discharge around ovulation time if I go by a 33day average.
Iv bought some cheap 10mlu test from eBay so have an endless supply!!
Just want to know when it would show up if I was and could the bleeding mean anything???

I think the general advice is to wait until the end of what would be your longest cycle and then test. If you test too early even if you are pregnant the hormone levels might be insufficient to register on the test. Also use the first wee of the day for max hormone concentration.

Do you have any other symptoms? Sore boobs for example?

Bleeding is unlikely to mean anything. Wait 19 days from the unprotected sex in question and a test will usually be accurate.

Sore boobs and weeing lots but I'm trying to drink more water so that might not be a symptom!!
I've got a 2 & 3 year old so I should be dab hand at this!! My periods have always been regular until the beginning of this year!!
Just wait and see I guess.
Getting married in 3 weeks so timing might be a tad off!!! ;-)

Oh and tiredness... I am exhausted and have been on the 'herbalife' diet fir two week which should increase your energy levels but I am beyond tired. Maybe wedding stress though, but I don't think I'm actually stressed. I'll just test every morning until something happens! Thank god for eBay and their cheap tests!!!

No again this morning. Maybe tomorrow!
Any point trying in the evening???