question help is needed

So I had my guy give me oral and fingered me on Friday night but wasn't sure if his hands had any precum as he told me his hands where dry plus his penis didn't seem wet but it was dark too can't trust my hands only! I'm on the alesse pill do you guys think it's possible to get preggo? Today also took it an hour and so late and I see very slight spotting (fresh and old blood) could that be from the pill? Please help me I remember taking all my pills each day as up to today I'm on date