My cycle goes for 27 days, period last 5 days.

I had my period this month on 1-5 December.

On the sun 9th Dec and my boyfriend had unprotected sex and he cum inside me. During the period of the days from 12th dec Wednesday-Sunday 16th Dec. I stared having weird feeling like I have a short of breath just walking slow on a short distance, feeling light headed, dizziness and moody, loss of appetite, can’t sleep. Little things get to me. I was hospitalised i got mad and I couldn’t breath probably. I don’t even have anxiety.

I already went to my GP and took pregnancy and blood pregnancy test and it’s showing negative. Took 2 pregnancy test myself at home and it’s negative. I feel like I was ovulating when he came in. Now I’m waiting for my next period. Was just wondering did anyone get pregnant after couple of days after their period??