Could I be pregnant?

Patient: I’ve had the implant in 3 years now was due out at the end of October and I was given the pill but I missed the last few of the packet. I havent had a period since June because of the inplant. My boyfriend and I have had intercourse 3 times from the 16th november where he has ejaculated in me, I’ve been feeling more tired and a lot more sick and I’ve been more moody than ever! Also when my nipples rub against my bra they are really sore and tingly. I’ve took 3 hpt and all have came back negative! Is there still a chance I could be pregnant? Also today when I bend or walk I get a pain on my right side just were my hip is

Doctor: