plan b Question

3 weeks ago I had sex without a condom. the guy pulled out super early. I took plan b that day just to be safe. 2 or 3 days after taking the plan b, we had sex again several times, him pulling out super early like the first time. I know this was stupid. about 4 days after taking the plan b, I had a super light period for like 3 days. fast forward to now, my period is supposed to come today but I haven't really had any cramps or PMS symptoms like I normally would. I'm honestly kinda scared. would it be likely that I got pregnant or since I had a light period after taking plan b would I not have my period for this months cycle? help I'm scared :(