Missed progesterone only pill!

eli

Uhhh my boyfriend was over last weekend we had sex quite a few times, I missed the pill then took then forgot then took, then start of the week I have miss layed my pills and been busy all week to get over to the doctors to get more, before I was constantly bleeding.. now I haven’t bled in the last 2 or 3 weeks, I’m quite worried do you think I could become pregnant over this? I’ve been on the pill for about 6 months now always have missed not more then 2 days and doubled up and have been completely fine but this month has been the worst YES I know maybe another form on contraception is an answer but that is not my question, fingers crossed everything ok. Do you have to have a withdrawal bleed coming off the pill before you can fall pregnant? Or it doesn’t matter? How long should you start bleeding after your last pill?