So me and my husband were having sex and after we realized that the Condom had broke. He's not sure if he started to cum in me or right when he pulled out but it must have broke as soon as he went in me because it was completely rolled down.

My periods last about 5-7 days and usually start around the 1st of the month. According to this app I start me ovulation period tomorrow. Should I take plan B? And when is it to late to take it? We live overseas and I'm not sure if we can find it on our base and I'd have to wait till tomorrow after work because nothing is open right now