My boyfriend and I had sex on my first day of my period. He came inside me. My period started acting funky...went away for a little, then came back..Normally it is very heavy. A few days later (still on my period) we had sex again, unprotected. He came inside me again. Am I at risk of being pregnant? i've heard being on your period is the wors time to have unprotected sex..is this true?