Pregnancy - #9651

So i hope you all doing well. I've make out with my girlfriend with protection but any how condom was broked out so next day she take an ipill. After taking an ipill she had some bleeding after 3 days that lasts 1 and 1.5 days. After she had to period on the last 19th march but they were delay till today 7/04/2025. In this time we have take 3 pregnancy tests and all are negative but we are worried too so still any chances to get pregnant or if no so whats the date we assume to periods.