Baby's Health. Affect child' health?

Hello doc, We are a married couple since last 8 month.Usually i have sexual intercourse with my wife without using any protection and at the time of ejaculation i release it outside and we are following same practise since we got married. Once i was too passionate and i release my sperms in her. The same evening she took ipill to avoid any pregnancy. My wife monthly period date is 17th of each month which now got surpassed and she got worried concerning that she is pregnant. I bought her an Ican pack to verify the same. She did test which turned out to be positive. Now we don't wanna abort as it's our first child. I am also not sure if this instance the same when i released in her or after that coz it's almost more than a month back we did this and after that we had numerous sessions wherein i used to just remove my penis just before i release is it just a single drop is enough which leaks when u have session? Now we are just worried whether ipill will affect child' health ?