I think taking the pill is not a bad thing in the first few weeks (not saying you are pregnant) but plenty of people get pregnant without knowing it on the pill and dont find out until about 6wks or later and there is minimal risk of fetal damage.

I think it is a long shot that you would be pregnant seeming you are only 10days into your cycle. Depending on how long your cycle is ovulation normally happens on day 14, however that means you need to be very careful from day 10 through to about day 20.

I dont know all about it but I am sure there are others that will help as well. I woould just abstain until you are back on track with your pill and your cycle just to be sure.