Could I be pregnant? 9 weeks postpartum

I’m freaking out! I’m 9 weeks postpartum and I had sex when I was 6 weeks postpartum but my SO used a condom and finished inside of the condom in me and when he pulled out there was a big wet spot where he had pulled out on our bed... I thought it was from me at first... anyways about a week and a half ago I stopped breastfeeding . When we were having sex i was breastfeeding but not around the clock so I guess it’s possible I ovulated. Anyways these past couple mornings I’ve woke up with very bad nausea ... also my breasts have been continuing to leak even though they have not had any stimulation to them... I have not yet had a period since having my baby... could I be pregnant ?