Scared Iโ€™m preg ๐Ÿ‘ ๐Ÿ‘„ ๐Ÿ‘

So I was only on the pill for a month and a week cuz I got an allergic reaction . I had sex over a month ago and he used a condom and pulled out the pill wasnโ€™t active tho . I did get my โ€œperiodโ€ on the 5th placebo and it was heavy . I heard you can still get that and be pregnant? Or am I overreacting help my boobs hurt real bad