Maybe ?

So I had my fourth son three months ago....He passed away from extreme anomalies from having digeorge syndrome.....I told my dr I wanted to wait to have another baby but I do want to have one more...So I've been on birth control pill since I had my baby. But the last week the pharmacy took its time refilling my bf and I forgot it a day or two to pick it up so I was off it for 6 days during which time we did a lot of bding.could I have gotten pregnant ? I worry because I'm also on anti depressants and would want to stop them if there's a chance I am...