Unprotected sex after period

Chingsin • Sat, Apr 23 • 25

My boyfriend and I have been doing it without the condom during and right after my period ends. On the fifth day (after period) he thought he might got pre-cum in me and I'm considering whether to take Plan B or not. My cycle usually last about 30+ days so I shouldn't be ovulating at all..but just in case right?