Help!!

so I am 6 months pp, I got an iud August 31st. When I first got it I bled off and on for about a month 1/2. Then I stopped for all of October and nov 7th I started bleeding again, I figured it was just my body still adjusting to the iud. Well for 2 1/2 weeks I spotted and nov. 19th it fell out randomly!!! It came out all in one piece. The next day I started bleeding really heavy, that lasted for about 3 days and then stopped completely. I figured that was withdrawal bleeding. Well I took okps trying to figure out where at in my cycle I might be so we could avoid pregnancy if possible since it fell out. We did have unprotected sex the same day it fell out (before it actually fell out) and then 2 days after because all okps were neg (I usually track bbt but unfortunately it wouldn’t be accurate since I have no clue where at in my cycle I am) we had sex on the 24th and on the 25 I randomly got a very very positive okp. 😩 it’s been 6 days since then so I know it is still to early to text but what are the odds I’m pregnant? I’ve been experiencing major cramping and sensitive boobs. I’m also extreme tired and have no appetite right now along with loose stools